I love love LOVE your version of Izzy! She's totally my headcanon of what Izzy looks like in the show. the insane look of glee on her face is the best! She just seems so happy to be here, or like she might pull out a knife or something. Both things seem possible with her.
Her clothes are perfect! I love how they fit to her curves. It's like they're a size too small, judging from how her tits are threatening to spill out of that top. One wrong move, or if she jumps around one too many times, they'll bounce out into the open. I love the effect of the shorts of her ass as well. They look like they can barely contain her round cheeks. It also seems like Izzy isn't wearing underwear, very in character for her!