That's roughly how good mine came out as well. Thank you, I think it'd be better to change the background color to white, and have it higher res, would you agree?
Yes. The shadow under the images makes it look good with a colored background, but trying to remove it leaving the knife image only was hard because of left over remnants. Plus, the blue was not all once shade so I probably mis-used a few tools trying to remove it. :P
Might could do it with an all white and no shadowing. Sorry I wasn't much help. Tried the other image, too. Even worse. lol