First things first, you nailed the presentation of this game; good choice of color palette, and nice going on keeping it relatively streamlined. The musical choice fits nicely, and the sound effects felt balanced when I played through it. One thing I'd try to adjust is the length of the menu transitions, as I think they might feel too long, especially if going through the instructions and options. It's also a bit jarring to switch from the mouse to the IK keys after the menu, but it's not that bad; maybe try making the kite controllable with the scroll wheel?
Overall, really solid entry. Rated!