This is a silly rendering of Tux (the model was downloaded a while ago from the net as a .blend file, will provide a link later when I can find it) He is presenting the grub menu items for you (like Bob's Beauties...err i guess they are Drew's Beauties now) Dont forget to select your favorite colors for the text. Use Grub Customizer found at:
https://launchpad.net/grub-customizer


Almost forgot, its actually 1366x768 thats the silly size of my screen and I didn't know what size to make it for everyone else but that is a good size for most to resize/crop for their screen. also it dont distort very much if you just leave it for most screen sizes its pretty much 16:9. It kinda sux that i couldnt upload it to this site