Over the years I've done a lot of art for Bloom. From characters to environments....to all of the UI (such as icons and dialogue windows).
But they didn't start off as they are now. It was instead a long process as I kept working to try and improve.
Anyhow, here is one of the "Art of an Indie Game" videos I've made, this time about the UI and how it has grown.
https://www.youtube.com/watch?v=jlZa5nuG9Ow