ImageView not displayed into layout

i have a problem with a layout. I'm using SlidingUpPanel and i would like to jave an ImageView below a TextView. The code is this.

<RelativeLayout 
            xmlns:android="http://ift.tt/nIICcg"
            xmlns:tools="http://ift.tt/LrGmb4"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fitsSystemWindows="true">

    <com.sothree.slidinguppanel.SlidingUpPanelLayout
            xmlns:sothree="http://ift.tt/GEGVYd"
            android:id="@+id/panel"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="bottom"
            sothree:panelHeight="70dp"
            sothree:shadowHeight="4dp"
            sothree:paralaxOffset="100dp">       

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">                

            <com.simonedev.player.utils.PagerSlidingTabStrip
            android:id="@+id/pagerTabStrip"
            android:layout_width="match_parent"
            android:layout_height="50dip"
            android:background="@drawable/my_drawable"/>        

            <android.support.v4.view.ViewPager
            android:id="@+id/viewPager"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/pagerTabStrip"/> 

        </RelativeLayout>

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#eeeeee"
            android:orientation="vertical">

            <ImageView
            android:id="@+id/myImage1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true"
            android:layout_marginTop="20dp"
            android:layout_marginRight="10dp"
            android:layout_marginEnd="10dp"
            android:src="@drawable/ic_action_im"/>      

            <TextView
             android:id="@+id/text1"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="5dp"
             android:layout_marginLeft="10dp"
             android:layout_marginStart="10dp"  
             android:layout_marginRight="15dp"
             android:layout_marginEnd="15dp"
             android:layout_alignParentLeft="true"
             android:fontFamily="sans-serif-condensed"
             android:singleLine="true" 
             android:ellipsize="marquee"
             android:marqueeRepeatLimit ="marquee_forever"
             android:focusable="true"
             android:focusableInTouchMode="true" 
             android:scrollHorizontally="true"
             android:textSize="18sp"/> 

            <TextView
             android:id="@+id/text2"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="5dp"
             android:layout_marginLeft="10dp"
             android:layout_marginStart="10dp"
             android:layout_below="@+id/text1"
             android:fontFamily="sans-serif-light"
             android:textSize="15sp"/>      

            <RelativeLayout
            android:id="@+id/relative"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

                <TextView
             android:id="@+id/text3"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentLeft="true"
             android:layout_alignParentStart="true"
             android:layout_alignParentBottom="true"
             android:layout_marginLeft="25dp"
             android:layout_marginStart="25dp"
             android:layout_marginBottom="75dp"              
             android:textSize="17sp"
             android:text="0:00"/>      

                <SeekBar 
            android:id="@+id/seekBar" 
            android:layout_width="fill_parent" 
            android:layout_height="wrap_content" 
            android:layout_marginLeft="5dp"
            android:layout_marginStart="5dp"
            android:layout_marginRight="55dp"
            android:layout_marginEnd="55dp"
            android:layout_marginBottom="70dp"
            android:layout_toRightOf="@+id/text3"
            android:layout_toEndOf="@+id/text3"
            android:layout_alignParentBottom="true"                     
            android:max="100"/> 

                <TextView
             android:id="@+id/text4"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_alignParentRight="true"
             android:layout_alignParentEnd="true"
             android:layout_alignParentBottom="true"
             android:layout_marginRight="22dp"
             android:layout_marginEnd="22dp"
             android:layout_marginBottom="75dp"              
             android:textSize="17sp"/>      

                <ImageView
            android:id="@+id/myImage2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentEnd="true"
            android:layout_marginTop="20dp"
            android:layout_marginRight="10dp"
            android:layout_marginEnd="10dp"
            android:src="@drawable/ic_action_im2"
            android:layout_below="@+id/text4"/> 

            </RelativeLayout>   

        </RelativeLayout>
    </com.sothree.slidinguppanel.SlidingUpPanelLayout>

</RelativeLayout>

Now, the problem is that myImage2 is not displayed when i run my app and i don't understand why. Where is the error? How can i solve?