I've been looking forward to you posting your dream portfolio! A couple more things I'm seeing-
First- There's a stronger intentional use of lighting and atmosphere in your dream portfolio. It feels believable, but also pretty staged in many of the pieces. Several of the pieces in your current portfolio are heading in that direction- but it isn't quite hitting in the same way. I think saturation has a little to do with it- but it might be valuable to study the value structures of the overall elements of the piece, as well as what's happening with the shadows, midtones, and hightlights of the characters themselves.
Second- Your dream portfolio plays more with the proportions of the characters. You do play with proportions to a certain extent, but a lot of time the different elements of the characters will end up balancing out in their visual weight, and we don't quite get the contrast that your dream portfolio displays.
Don't know where you want to go with lighting or character design- but I figure it was worth pointing out.
I'm excited to see your masterstudy.