well I have to see it first before I can say anything about it. Anyway if takakenji is saying it's bad, I won't assume he's a liar.
A texture is a complex piece of art designed for a special purpose. Do it step by step, and take your time. A texture has a lot of aspects, it's not just patches of different colors, it needs to WORK when put on a 3D model. I could only repeat what takakenji said about the importance of shadows and highlights. A texture HAS to be a fine tuned composition that makes sense in this specific medium. Do you think your texture is ALIVE? If you say yes despite what takakenji said, check the skins made by some really skilled artists on this site- and think again.