Clothing
- Maid uniforms, of any style! Artist Ray Tatsumi has a great chart to give you ideas
- Meme outfits. Think kitty window lingerie, backless sweaters, etc.
- Magical girl styled outfits
- School uniforms/seifuku
- BDSM gear, specifically harnesses and restraints
- Shibari or rope bondage. This gets its own mention because of how important it is
Themes
- Romantic intimacy between two (or more) characters
- Seasonal, like summer fun or winter cozy
- Extreme expressions. Want some crying vent art? Maybe a really unflattering goofy face?
- Monochrome palettes
Scenes
- Aftermath cuddling
- Forest paths and nature in general
- Slice of life pics
- Spooky witch aesthetics