I like this a lot, angles can be difficult to work with but this one works. May I suggest in the future to have the model tuck the bra strap down under her shirt, just keeps the picture a bit tidier.
The visible bra strap thing has been a de rigeur fashion element for a few years now. If you'll notice, the shirt's strap is actually too narrow to cover the bra strap even if she'd wanted it too. This isn't an accidental wardrobe selection.