For the love of all that is sacred, save in .gif or .png!
Also, those reds can use some desaturating, and changing hues to something less pure would be nice to see. In smaller spaces, like the computer screen, black outlines can definitely be removed. Also on the white part of the guitar. It's just wasted space, you could use those pixels to add some more detail rather than just bordering flat colors. Speaking of flat, that pillow is missing... a pillow.
EDIT: Huh... Now that I've read Xion's posts, I realize that we have stated the same things for the most part.