Wow great bug shot, but I think it would have done better in Harsh Environment than in portrait. It is an amazing image, just not a good challenge entry.
The spider is so well camouflaged that I couldn't quite make sense of what I was seeing until I read the title. Really good macro here. Good environmental portrait of a spider.
Nice capture of a natural event. Few things I see is that focus is really unsharp. Also there is a roughness to the image, which indicates you tried sharpening, but it created a harsh, unattractive effect. Color is also too yellow, which might mean your white balance was off as well.