APK Size Is Massive For What It Is

The APK file size is 15MB despite the fact that I have change the settings of the player options like ARM7 etc. But on the Build Report it says it is 5MB, anyone have a fix?!

  Build Report
    Uncompressed usage by category:
    Textures      626.7 kb	 11.8% 
    Meshes        0.0 kb	 0.0% 
    Animations    0.0 kb	 0.0% 
    Sounds        0.0 kb	 0.0% 
    Shaders       10.2 kb	 0.2% 
    Other Assets  5.4 kb	 0.1% 
    Levels        5.7 kb	 0.1% 
    Scripts       614.7 kb	 11.6% 
    Included DLLs 3.9 mb	 76.0% 
    File headers  9.1 kb	 0.2% 
    Complete size 5.2 mb	 100.0%

The build is going to be lower in size as the file is being changed into XML code. This stream of code increases the file size. What you can do is reduce the image sizes in Photoshop by using Posterize at 40% so the image quality is still good. You will see a huge change in the image size. That will drop your 11.8% to about 2.3%. Your DLLs files may need to be updated to reduce the mb 3.9 size.