This game was super fun to play. I'm really glad I had the opportunity to playtest the first version and see how far it has come!
The first strength I noticed was the visual design. The 2.5D design is a really good choice for this game, and also a great decision for using the physics engine. I was really impressed with how the 2D assets were rigged like a ragdoll and also felt it was very QWOP-like-- which I enjoyed. Overall, beautiful 3D background art and 2D asset designs!
Another strength I enjoyed was that you added the little girl on the shoulders. I remember back in development, it was unsure if there would be a player atop the other, or other characters. I think this was a good choice and made gameplay interesting.
In terms of suggestions for improvement, I think this game is very polished already. I think my feedback would be aimed towards the development itself, as we spent a bit of time together playtesting and discussing this game.
As a playtester, it was uncomfortable when my feedback was talked over to debate decision-making. I would suggest keeping those conversations for after the playtest-- it will keep your playtesting sessions professional, and allow you to receive feedback.
Overall, I felt that this was a great iteration of this game. I'm so glad to see it come so far after only a couple of weeks! Great job and keep it up.