Featured Artist: Casimir
Casimir's Art Nouveau stylings and vibrant use of colors and mixed media really create some amazing pieces of work. Quick heads up that their art has a bit more nudity if you decide to follow the links, so maybe a bit NSFW.
You can find more of their work at:
https://casimir.artstation.com/
https://twitter.com/CASIMIR_ART
https://www.instagram.com/CASIMIR.ART/