I just went through the tag groups, and I thought suggesting the following additions and changes to the tag groups:

Changes

• Move the Emotes in tag_group:Eyes_Tags and Emotions in tag_group:Face_Tags to a new group. I suggest the new group be called 'stylized emotions', or 'exaggerated emotions'.

New Tag Groups

• Nudity tag group, for tags about showing skin such as midriff, bare_shoulders, chest, nude and so forth...
• Actions tag group, for tags like walking, running, talking, pant, kick, punch and so on...

Name suggestions always welcome and wanted.