Hi and welcome to the forum. In the future, please put your name on the card. Just tap Unknown Author and change it on the Make Levels page in Mekorama. Also, use the Export button to create the best QR code. The one you uploaded can't be scanned. This is the Export button. Spoiler: Screenshot Here's an exported card image for your level. Spoiler: Level Card
This is a very nice first effort. B actually had to go around a second time to get past the last obstacle. You've done a good job of utilizing the entire layout, and the moving parts all worked smoothly. The only thing I kind of had to scratch my head about was R ... who doesn't do much but wander off in the beginning. But other than that, nicely done.