Arrrr, she's a real beauty! Well done on your lighting. Exposure doesn't actually look too bad for me, but there are just a couple of things that maybe niggle me a little bit ... but this is only just my opinion bear in mind...Something to think about for next time perhaps...
I think I would have tried to get your main softbox up a little higher and brought in a little closer... you can tell from the catchlight that it looks like it's on an even par with her, and pulled away at a fair distance. When you have to make yourself a contortionist to get the shot around your softbox, it's normally in the right position.
I normally have to photoshop a bit of mine out... Bring it in nice and close and that would soften up those shadows on her forehead from the headpiece too, although with how it sits, I think you'd struggle not to get any at all, but make them less noticeable.
I think the second image is the strongest of the three. The pose on the first looks a little odd - I know the look you were trying to go for, but it's a little 'too much' looking over her shoulder as it's made her little head all wonky at a funny angle.
The third, the conversion could perhaps be improved on, maybe up the contrast a bit? Play with your colour saturations a bit too maybe? It almost looks like a straight out-of-the-box desaturation, which doesn't normally work that well. She's also looking down at you, or rather, you're looking up her nose. And her dress looks a little blown in places.
None of these things that I've been perhaps over picky with are deal breakers by any stretch, so please take them with a few grains of salt. These are just things I've had to learn in my journey.
Well done, she's a very pretty little girl, you must be very proud.