The name "Beautiful Bug Alien" is certainly fitting for your digital art creations that resemble psychedelic bug heads. It is unique and memorable. However, if you're looking for other options, some other ideas could be "Psychedelic Insectoids", "Digital Entomology", "Neon Bugs" or "Virtual Entomophilia". Ultimately, the name you choose will depend on your personal style and the message you want to convey about your artwork.