Finally got a wacom and the second edition of the book i was using, the first edition appeared to be missing steps so i thought the next edition might be better. It's still a bit confusing but i guess im learning more this way. Anway, heres two brick textures and two window textures. The first two are the same base texture with various overlays and layer effects added. Same with the windows, the opacity layer cant be seen with these, but there is a alpha layer and it is see-through in the half life two engine.