Getting back to horizontal sigs... lol... another stock that I saw and knew I had to make into a sig. If you want to know, it was actually a picture of Apocalypse, from Xmen. Anyway, here it is, Original stock as well... Original Stock: v1: CnC Please XD
You really need to work on effects and colors. Most (pretty much all) of your sigs have a warm feel to them. It looks like you only used warm-colored gradient maps on soft light and photo filters. And then you did something to make the colors even worse. You boosted the contrast up really high. This rarely makes a signature look good. Now, for your effects. Well, I don't see any! Yeah, you probably did a few displacement maps and whatnot, but they aren't visible. You should NEVER EVER sharpen the entire signature. You can do two things to create depth. Use a good light source and base that off the lighting you control in your signature. Or create depth by blurring other parts and sharpening the focal. You should only have one focal in most signatures. Well, that's all. Read some tutorials to learn different effects/styles.
Actually, he has the colors perfect. It's a desert. What do you want? Snow? I prefer you to keep it that way, but Diz may have a point about the depth. Figure out what you want as the focal.
... Lol. @Frag, I could add snow if I wanted... just think I might get some sort of scalding for putting snow in the desert. But hey, whatever floats your boat. EDIT: Oh and whisper... Apocalypse can be whatever he wants lol... but take it up with whoever made the stock.