I enjoyed this a lot more than I thought I would. I really enjoyed the little story bits from the different adventures, as well as the innocent mini boss. The art was pretty good, just needs a bit more variety, but with more transformations that will probably come to pass.
Nothing really seems unintuitive aside from not know what I missed on potion combinations, but I understand that's part of the puzzle. But I swear there are a few were I am almost certain I got the combination right but still had wasted potions. And what I assume is "Enchanted" weapons, unless I missed something nothing about them were explained, as were the jellies in a jar, I never found a use for them.
I do see people asking for futa in the game, and I don't want to push for certain content one way or the other, but if you do decide to go the futa route at least make it tasteful. Nothing worse for me personally is when futa content is added and the dicks and balls are 70% of the body mass, I come to see the ladies with breasts that are 70% of their body mass =)
Something to consider since you are in a Alpha release though, as someone else mentioned have some sort of dynamic content would be a fantastic way to extend gameplay time, even if it's something as simple as an endless mode with randomized combinations with a set gold goal to reach with just some basic speech not contected to the main game/story.
Anyway, I give it a solid endorsment for a nice puzzle Transformation game and looking forward to more.