Android scaling issues (Layout)

As you can tell from the title, I have some scaling issues with what I am creating at the moment. Everything works fine on my Galaxy S5, however, when I try to run it on a large screen Samsung tablet, I get some problems.

Since I cannot post pictures, here is a link that gives a visual description of my problem: https://www.sendspace.com/file/83j0tp

Update . Since I have 10-point posts, I can add photos.

Samsung S5

Condition 1

Condition 2

SamsungTab (tablet)

Condition 1

Condition 2

This is my XML:

Hope you guys can help me.   

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">


<LinearLayout
    android:layout_alignParentBottom="true"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/linearLayout5"
    android:layout_alignTop="@+id/linearLayout6">

    <ImageView
        android:id="@+id/loginImage"
        android:layout_width="fill_parent"
        android:layout_height="match_parent" />
    <ImageView
        android:id="@+id/loginImage2"
        android:layout_width="fill_parent"
        android:layout_height="match_parent" />

    <TextView
        android:layout_width="372dp"
        android:layout_height="match_parent"
        android:layout_alignLeft="@+id/loginImage"
        android:layout_alignTop="@+id/loginImage"
        android:layout_alignRight="@+id/loginImage"
        android:layout_alignBottom="@+id/loginImage"
        android:gravity="center|right"
        android:id="@+id/textLoginmail" />
</LinearLayout>

<LinearLayout
    android:layout_alignParentBottom="true"
    android:layout_width="fill_parent"
    android:layout_height="49.5dp"
    android:layout_marginTop="45dp"
    android:id="@+id/linearLayout6"
    android:weightSum="1"
    android:layout_alignParentEnd="false">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:text="Registreer"
        android:gravity="center|right"
        android:textColor="#FFFFFF"
        android:id="@+id/textRegistreer"
        android:layout_weight="0.72" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="fill_parent"
        android:id="@+id/textLogin"
        android:layout_weight="0.44"
        android:text="Login"
        android:textColor="#FFFFFF"
        android:gravity="center"/>

    <Button
        android:layout_width="81dp"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent"
        android:id="@+id/closeButton" />

</LinearLayout>

<FrameLayout
    android:layout_above="@id/linearLayout5"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="25dp"
    android:id="@+id/framelayout_facebook">

    <ImageView
        android:id="@+id/facebookImage"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <com.facebook.widget.LoginButton
        android:id="@+id/fb_login_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:drawableLeft="@drawable/ic_action_labels"
        android:drawableRight="@drawable/ic_action_next_item"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"/>
    <LinearLayout
        android:clickable="true"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:orientation="horizontal"
        android:id="@+id/overlay_for_terms"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:weightSum="1">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center"
            android:textColor="#FFFFFF"
            android:id="@+id/textFacebook"
            android:layout_weight="0.90" />
    </LinearLayout>
</FrameLayout>