2 things make this style you're using terrible 1. No light source, there's 1 billion little lights everywhere and it takes away from depth as well as the focal. It really just makes your sig look like a mess. 2. No unification of color, it's all so disorganized and there's so many contradicting colors that again, it makes it one big mess. What's sad is I know you can do so much better then this, it just seems as though you're being lazy with this style, or maybe you're putting in a lot of effort and you just have no idea how to use it. Either way, bad sig. I'd suggest moving on to something different asap.
Nice! I like how both his eye colors are different. Makes it feel like he has two personalities within him. Awesome job! But there's a lot of distractions like the lights all around him and it's too much. @_@ Please lessen it and then it would look much more better.
Try adding a black and white gradient, then apply image, and add like a 100px soft brush light source coming from top left of his head.
The color distractes the eye(our eyes, that is) before you actually realize the person there. But i like the red eye effect, copuled with the other blue eye. Overall, nice job!