Bad-Attitude-Ink created this as a commission for Titaneer, and posted it to deviantART. It shows Susan Storm, the Invisible Woman, “hulking out” and becoming hypermuscular and super-strong! To quote the artist, “She’s half invisible and totally pissed!!”
I suspect this is a play on the recent Marvel Comics storyline, “Hulked Out Heroes”, in which a number of superheroes become Hulk-like versions of themselves. There was a “What if…?!” story lines in the past where Sue Storm (and the rest of the team) is granted super-strength instead of invulnerability by the cosmic rays that created the Fantastic Four – they all wound up as monsters. In some parallel Earth iterations she has been represented as looking much like the Ben Grimm Thing (Earth-82834, Earth-200782), but in another version shown in the original Excalibur run, issue #49, Sue Storm made for a very sexy Thing in one throwaway panel. (I googled the crap out that but couldn’t find a scan.)
I was reading through some of the Wikipedia superhero entries when I stumbled upon Ultra Girl’s: