You should be proud of this one , this is some good stuff. from memory it is probably your best one yet. Nothing seems wonky or out of place, nice clean,readable and precise.
if you are feeling up to it (you are not obligated to, this is a suggestion for where to go next and I could easily be wrong). you could try and incorporate shadows and hilights in your next piece. good shadows and hilights make it the picture Pop out of the paper. You are already using the pose for the feeling of depth (some marvel comic artist used poses for that pourpose although his poses were a bit extreme limbs going whcihever direction)
one foot behind , other forward, wide arm stance, it gives Mr smasher a feeling of 3 dimentionality already.