A solidly made solitaire with a relaxing atmosphere and great sense of place. The jelly creatures are cute and I like how they flee from the mouse. I had fun once I got the hang of it.
My only suggestions are improvements for the UI. it was difficult to figure out how to use the Transpose power, maybe make it more obvious when it is turned on and add text telling the player to pick a stack. The shop has a similar issue: "toggling" items on/off to purchase them feels strange, and sometimes the text is faded out on some relics, which in most games would suggest that they're locked or can't be selected, but here I'm not sure what the purpose is?
Also, I don't know if you plan on making this a commercial game but if you are, do note that the term "Jello" is trademarked, and could get you in legal trouble. Best to rename it to something else, like "Jelly".