I see what you're saying in terms of design, but Marvel did depict a 'Iron Man' type Skrull at least a couple of times. Not sure if it was just for promotional pictures or if he actually appeared in a comic.
It might look better if I repainted the black part of the Skrull red, and the yellow bits purple.

I understand what you were trying to do, but this one just doesn't make any sense from a design standpoint. Super Skrulls employ super powers--Iron Man's armor isn't a super power, it's just armor--anyone can wear it. A Skrull could just done a suit of armor without undergoing any bio-engineering to attempt to replicate Iron man's "powers". A Super Skrull armoring-up like Colossus is understandable, but not this. It ends up looking like Iron Man attacked this poor Skrull while he was in the middle of getting dressed...