Good concept but it needs a bit more work on the execution. When I picked up the first potion I immediately thought of alice in wonderland. That's an interesting take! Here are a few things that need work:
- Player and camera movement doesn't feel great and are probably the greatest show stoppers
- Sound effects and music are also really important to set the proper mood of the game. So please add those
- The contrast of the players color against the purple background is not good. I would suggest that you check out some existing color palettes and you those or watch a view tutorials on how to make your own
- I got stuck underground after drinking a potion, climbing up and falling down again. That hints that you need to do a bit more playtesting
I hope you are okay with me giving you some feedback and please remember that every game you finish is a feat in itself :)