Darth- I see a couple of problems: The layers aren't going to work as well as you think, whatever in non-transparent in a layer will completely obscure anything below, and anything partly transparent will partly obscure it. Layers work fine for tattoos and moles, because you are not expecting to see much else there, and they work very well for things like lady's stockings that will really just slightly modify what is below. The other problem is file size, as pointed out. The only way to transfer is JPEG, PSD files just don't compress well enough. Incidently, I have never seen the need to go past 1600 x 1600 for a map. I regularly do my texture with about 6 layers AND several channels AND several paths- a channel can be more useful than a layer, channels convert to selections, remember, and the selection can be used for various operations on a layer. Paths are nice too, and can be combined with channels and selections to modify layers. But the 20 Mb files are much too big to download- they are just a tool to make the JPEG.