Squared - Shape Fitter Puzzle

Hi guys, I created simple relaxing puzzle shape fitter game. Your goal is to fit all the pieces on the board. You can rotate the pieces, some are redundant and in week or so, I will add other levels where you have to rotate the board itself or can not only rotate, but also turn the pieces around.

Here is the link: https://play.google.com/store/apps/details?id=com.FF.SS

Any feedback is very appreciated. Thank you.