I'm going to check out your game as soon as possible.
It's very unfortunate that you couldn't find all the stars. Let me help you. There are 3 stars in the house that you have to break the glass to get into. 3 stars are outside of the prison and you can get them when you free the white wolf. One of the trickiest stars is in the purple tree area and you have to jump over the rock to get them. The rest of the stars are in the maze and on top of the tower( in the white wolf area)...
And yes, we were inspired by "The First Tree" but we tried to separate ourselves from that game by adding more puzzles and changing its story....