Photoshop with a slight amount of corel painter retouching. 30 hours.
For 1600 wide wallpaper just zoom in and click "save as"
for full size resolution download. 6000x3374
Also, where does this painting look better with? An accer laptop type monitor or a Mac?
I look at it through accer and the colors and contrasts look bland in comparison, but when I look at it through the school's Mac computers which are LCD, they look amazing.