First, Welcome to the forum. 2nd, I'm sure you had fun creating your level and I encourage you to do more. 3rd, it's not recommended that you use FREE DRAGGABLES (that's using a draggable that isn't anchored) as us players can slide them anywhere we want. For example, in this level, I was able to win with B, with a zapperR and with a draggable. I didn't see any use for the ball or R.
Won with a draggable block (they're like Wonka-vators, they can be dragged sideways and slantways and pretty much any other way you can think of), R, Zapper R and B. You stumped me with the ball, couldn't figure out a win with that one. Hope you had fun, and keep at it!
Your first level? Be quiet,you will do better levels in the future... Thanks for sharing @sarah renee