Trained on vanilla SD1.5 but works better with art-focused checkpoints like Elldreth's and others from this website. Training dataset contained game portraits, key art, and some cherrypicked fanart.
How to consistently get very stylized results:
Use Elldreth's lucid mix
Use "[{subject}:abstract background:0.5], expressionism, digital art, colorful background" prompt, replace {subject} with anything
Parameters: 20 steps, CFG=2, DPM++ 2M Karras sampler
Some usual negative prompts
See my comment below for examples of this method