Really like the character models! The main puzzle was a little too abstract though. I do like how you set up the panels with red lights as being bad to step on prior to reaching the grid puzzle, but that gets contradicted with stepping onto the grid for the first time. I'd maybe have an additional light color for representing panels you can step on but don't progress the puzzle to add a bit of clarity as well as something to help teach that your goal is to reach the green panels.