Textures for me. I'm good with the coloring and making images look better but when it comes to adding more to icons, I get lost. I'm mostly a plain kinda person anyhow.
I'm not great with bigger graphics either. I can only use pretty HQ pics for those and I usually only use one or two with a texture, I suck at making them look decent together. I don't mean the blending, just finding images that "fit".