This is really good for just the beginning! And don’t worry about the art or the sound; if the gameplay’s solid, that will speak for itself.
I’ve been messing around with UE4 myself for a while now, but only recently started working on a game-like-thing as well. My project’s a 3rd-person action-adventure game though, rather than an RPG. I don’t have anything I’m ready to show yet, so you’re actually ahead of me, to be honest.
Best of luck, and have fun!