Meh fav is the Metroid one, cause it has the best flow. Colored looks better imo. 1st one - Don't like the effects that cut right through his face. They kill the flow and make it look messy. The grid bg is kinda cool for that idea though. 3rd one - This one has the best depth imo. Good colors and lighting as well. The only thing is the flow, it looks off to me. Good work mate.
coloured on all of them graysclae is too bright in places, and the samus one has best flow and colours, not to sure about the text though