Background is too simple/n00bish. Seems too boring. Cuts seem to be poorly blended, if blended at all. Are you just fading them to the background? Because you know there are filters for the layers....the blending mode. Switch them from normal to anything like overlay, vivid light, color burn, etc. and you might have some nice blending for the cuts. Also, put some contrast into the cuts(Image > Adjustments > Brightness/Contrast) and they'll look a bit better.