I did not think about having a limited move counter, seems like an interesting idea. But I felt that the goal of this game is to just try to fulfil the criteria on the right HUD rather than having to also complete the criteria within a set move. Because the criteria by itself has a lot of experimenting, so it may not be fun to limit the number of moves. However, I think adding move counter as a score could still be a fun idea, so you can always go back to the same level and try to beat the previous move counter.