After looking over all the new pics with the updated model, I can say that it's very impressive.
The vascularity you've added is fantastic. It adds another layer of detail to a model that is already good looking.
The improved midsection looks great too. As much as I liked the old model, I felt the midsection on that one was little wonky. The abominals on this new model have better symmetry and are more aesthetically pleasing to the eye.
Additionally, the broader shoulders give her a more massive look that makes her more impressive looking and imposing.
The mass that was added to her arms and legs fills her out to more impressive proportions.
The new chest muscles are also extremely good looking. Those slab-like pecs sitting above her new abs, flanked on either side by her beefier shoulders just give the model a very imposing yet gorgeous appearance.
The changes you've made to her body shape, particularly with the shoulders and midsection, have given her body better proportions and balance. This model makes me think very much of "Herculean Ideal Proportions".
With the vascularity added on top of the better shapes and extra mass in all the right places, it all comes together to make a more beautiful, buffer, and more elegant Sakura.