I still love the design of this jumpsuit. Unfortunately, the pattern and instructions make it challenging to realize the potential of the design. Thus, I still haven't finished a full jumpsuit. However, I have created two dresses based on the version A top and attempted a version B jumpsuit. If you look at the pics, you'll probably guess what happened...
Before I start with pattern issues, I just want to warn that the design seems to assume very much an hourglass figure. I have a very normal, nicely but not overly shaped figure, commercial European size 40, and I have to grade from size 40 (bust and hips) to 46 (waist). Not ideal, but doable.
Now to issues that should be addressed:
What makes the pattern advanced, in my opinion, is not so much the design itself but the lack of comprehensive instructions (I used the English version). Most of the instructions are vague (the pics only help occasionally) and some seem nonsensical. I could not make the Version A armholes work based on the instructions. So I undid the sides, and instead, used the classic burrito method for a clean finish. That was unfortunate, considering that the seam allowances are ideal for French seams. I also struggled with the fly instructions and eventually put them aside.
But what's worse: the pattern pieces for the Version B top are cut much shorter than for Version A without mentioning that anywhere in the description. I looked at your pics again and cannot make out a difference in top length, either. So tough luck if you rely on fitting experiences from using the Version A top.
I would really love to give this more stars, and I'll return once I've finished the jumpsuit I actually bought this pattern for. But for now: beware that you'll have to add a few unexpected extra considerations to make this work.