First, congratulations on publishing your first game! I think the idea has potential, for example, I liked that you could built up momentum. However, often I would get stuck, because I couldn't push myself away from the next rock - the snowman was positioned somewhat diagonally to it. I would suggest that next time, you could use an underlying grid, that objects are placed on. You have to make sure, that the snowman can only stop on a grid tile and not in between. That way, the game would feel a lot less clunky. The rocks that you can push away often cause you to get stuck too. Also, I think the rocks are visually... "unappealing"?