Gimp 2.8 Splash Screen ( Non-Branded )
Looks like a nice beginning! I don't think grayscale adequately conveys how powerful a tool GIMP is though. I think it needs more color though, and perhaps a paint brush or two (or is that the GIMP logo?).
Looks good. I personally think it needs more color and effects if it wants to really give off the impression that GIMP is a very powerful program.