Love the Thing piece.
The human torch doesn't work for me. He doesn't appear to be flying. If it wasn't for the 4 on his chest I'd think it's just a guy that caught fire and is plummeting to his death.
Invisible Woman works. She looks like she has a purpose and the pose/perspective help that.
Mr. Fantastic is alright but he's just there. No real purpose to him.
Not bad overall. You just have to rethink some of the poses. Also your work tends to be a bit muddy at times.
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