I imagine you're still in jam mode, but if you polish this up further, I still think the post-level screen could use a re-think. There's no reason the wrench score information couldn't be displayed to the player in-level, perhaps over the door as the wrenchmenschen are entering it (the x/50, x/25 indicator is ultimately a bit redundant, though you could change the color of the text once the number crosses one of the wrench score thresholds). At the moment, even though the inter-level screens are shorter, they're still a bit un-flowy, especially considering the pacing is faster than something like Lemmings.
A related issue is that in the previous version it felt like you could get 3 wrenches with a score in the mid-40s out of 50. In the new one, it seems like you can only get 3 wrenches if you score 25/25 – if this is the case, it might be worth making it more clear. One aspect of this is whether the player should know the score it will take to ace the level before they start, allowing them to quickly restart and tweak their solution if they fall short, rather than waiting to see if they aced it and having to start from scratch if they didn't. Of course, this isn't a huge friction point in this version, but if you had more complex levels it could become one.