You did a pretty good job on this! It's a very interesting Piano Patch. As an Ambient Music Producer, I thought I'd give you the tip to use a lot of Pads, Textures, & Soundscapes to produce good Ambient Music! However, a Piano works just fine. Pianos are great in a way that they can be used in basically every Genre of music well. Hope you can get better with producing Music, if you enjoy it!