Definite improvement, Tim!
A couple of nits to pick, on my part:
The model is pale. Really pale. Possibly on purpose, but the pale skin, white seamless and white clothing doesn't work for me. Change up the background color, perhaps yellow or blue, anything but black or white unless you're going for more of a "goth" style.
Drop the strobe down closer to eye level of the model - you've got a diffuser on it, take advantage of that and have your main light "wrap" the model rather than beaming down at her.
Move the model farther away from the background, or crank the background lights to eliminate the shadows.
Again, just my thoughts on what I'd do, based on what I think you're going for...
Overall, what I've seen of yours this is definitely coming along well!