So, I've made the decision between Mira and Serena for the first girl to focus on. I ultimately decided on Mira as, frankly, she's kinda my favorite so far and I think she has the best story of the first 4 girls. Add in that Serena is actually harder to draw (because of her lonnnnggg hair) and Mira won my mental tug-a-war.
But that's for the overall focus. For this specific piece..I'm actually pretty darn happy with it. I'm pretty much never 100% happy with Mira's hair, because I haven't found a good way to handle the 2-color yet. But, on the other hand, I'm a little impressed with myself over the clothing. I've never, not even on paper, tried to draw clothing being distorted like it is here. I had to figure out how to make it properly look like she was taking it off, with all the bunched areas and no-longer-skintight fit that implies. And I'm quite pleased with how it came out.