I like it, it was indeed very relaxing, the music and graphics worked well together, the animations were great and not too intrusive and the flower types were easy to tell apart at a glance. I could definitely see this on a mobile game storefront. The difficulty and feature escalation also felt nice when I had a quick look over the levels. Achievements are also always fun to have.
Now, if only I wasn't so bad at matching games. :D
Nice little project, overall :)