- I agree with the others, either just a short animation that is playing while you're talking with Cowza when you get overloaded, or if it's long skippable after the first time.
- I think the length of the level is good, if you're worried about the length of the game I think making more zones would be better.
- I think it looks good! I really liked the Dryad scene. I would like to see a bit more back and forth dialogue between the dryad and Miranda to add to the playing they're supposed to be doing.
- I think those were fun little additions, especially cowza showing her power at the end there.
For the Dryad zone:
If you don't already have anything in mind. I think to better tie in the Dryads with the science portion you could have the chase event have a switch that sets after you save the girl/beat the zone. So that when you return to the dryad area, they could be sitting around, or offer to help you with your research leading to a similar ending scene as the losing animation. That could allow for it to be a nonloss event after the main goals are reached in the zone and easier on players to gather the Dryad seeds, or for replayability (different reason why you're chased through the scene after completion)
All in all I think this is a fun game and I can't wait to see more!