If you want to be a working artist in the games industry... chances are you are going to need to learn how to do a whole lot of non-art things as well as your art to show that it works. Such is the nature of interactive media, so don't let them pay you less than another programmer/developer... because you are one of those too.
UI sketch directly thrown into a Construct 3 file to test how it looks while moving, compressed to heck due to poor-person constraints.