I must say, this picture is really really REALLY good!
Thor came out fantastic! I like the attention you gave to Iron Man's suit and Hulk is simply breathtaking! It's real cool that you took the trouble to sketch his rippling veins and muscles in that much detail. I also like the fact that you put the Stark tower in the background. By now I am quite sure that I can safely assume that you are a real comic hero fan and I do hope that you will keep reeling off amazing works of art like this for us other not so talented fans to admire...