Fun idea! It should probably say in the instructions that the row needs to be all of the same kind to break. (I thought it was broken at first.)
I agree with others who have said it's too easy, but I think it's got a lot of potential! You could give bonus points for clearing all of one color, and for clearing the entire board. As for making it harder, one thing I thought of would be to have 2 or 3 different colors of each type. So only blue scissors would cut blue paper. Dunno.