To totally customize it to what you want, is actually pretty easy.
Have a look at the Menu-xxxx.txt files. In this case the Menu-Compass.txt and the (soon coming) Menu-AlbumArt.txt files. You can open them in any text editor and experiment. You can take the compass line from one of the .txt files, and paste it in any of the others. Then its just a matter of experimenting with the sizes to get the layout you want.
Here is the line for the album art to show in the center. Open the Menu-Logo.txt file, and replace the logo line with this one:
Thats all there is to it, just make sure you have the right menu layout chosen in the skin settings, reload the skin and there you go, instant album art in the center of the main menu's.
TIP: The word "Album" on the main menu screens is a hidden reload skin command. You can alter the positions a bit in the text file, save it, and tap album to see the changes on the fly.