I think you nailed the theme for tiny world! I like the look of the interface and the graphic a lot. The learning curve is quite steep like others have mentioned. Simply because I didn't know which note is more important to read first and where to look to see if I did anything. Adding a soundtrack might help fill in the silence a bit while the player reads and ponders what button to push?
Overall a very nice job for a first game, it's got a lot of design and details in it.