Effects are bad. Text is bad. The pictures are wrongly chosen, look a little too close together. Everything is kinda mashed. I don't think the GIF is in the right spot, at all. It's covering up a picture of Cactus Jack. Not feeling it, no.
Why cause theres a GIF in the banner? Little advice, spend more time on makin a good banner, with some good blends, text, cuts and all that, then readin a tut on how to put a GIF in a banner. Its plain, and the font isn't that good... But you picked decent pics, just didnt use them right