CaveCraft Suggestions

I am currently working on a new Texture Pack called CaveCraft has anybody got Suggestions for the texture pack? It's a bit like these paintings of the cavemen that's wy it's called CaveCraft. Also I wanted to ask if the pack will get removed because it was made with GIMP. I only have a few blocks ready that's why I haven't posted the pack yet. I have Cobblestone, mossy Cobblestone, wooden planks (oak), oak wood, birch wood and the ores. The resolution is 128x. It's way more realistic than my EchinsBMPCraft but still not too realistic.

-Ecin44