Good job. I'm glad to see more people out there trying skinning and the such. It's really a lot of fun.
Besides what people have said about the repeating patterns (almost unavoidable sometimes), the only question I have with it is this: is that the same texture used by Hockey Freak 4 in his Helm's Deep mod/skin?
If so, that's just fine with me... I don't care personally. But he might like credit for the texture if he did indeed make it.
Anyway, don't get discouraged. All I've seen here is constructive criticism. I think people here have a lot of good things to say, and I can see you have a lot of good things to offer. This skin looks great, and I look forward to more skins from you!