Its a solid start. The idea of a wizard with a sword and a staff, who changes size to mow down his enemies, sound very fun to kill time with! The game felt a bit Runescape-y.
My main concerns were the same as the other comments, really: the camera angles were making it difficult to focus on the core gameplay, and I couldn't tell what side I was facing and stuff. I would end up dying most of the time by missing a jump. The enemies could use a lot more complexity, as I would simply kill them without coming even close.
Overall, this is a good start as a game developer. I think you should keep practicing, and polish this game up. Learn all the basics, study other games, watch GMTK videos (he did not pay me to say this). Work hard :) it seems like you have ambition, based on your idea and its execution. Cheers!