Good overall composure, that alien dude with the thumbs up bothers me, I'd rather see more excitement in his expression that just that. The detail on the foreground character is super, anatomy looks good. Where is the rest of the Coyote Ugly sign in the top corner? I'm curious about her left hand. The position you have it in looks like its resting on the sign. This could have some real motion if it was up in the air or back, taking up part of the left side of the pic, instead of the background people. I actually got down into this pose and the position you have it in feels like an artistic shot then chuggin' beer.
Looks good, and by that I mean, most all critiques will all ways be based upon the ideals and mood of the person looking at any piece. You have demonstrated in this one piece a solid ablility. So, my mood says do more, which I know you will, post more than one piece at a time so we can see your sequential work.