Qwen Image hates Pantyhose. The Tokens for "Pantyhose" and "Stockings" are all mixed up so often if you prompt for "pantyhose", "Tights" or "leggings" you get thigh-high stockings instead.

This Lora was trained to create actual pantyhose. It doesn't always work but it helps quite a bit.

Use token "Pantyhose" at front of prompt.

Diverse set of 100 curated images of various types, colors and patterns of pantyhose. No adult pictures were in the dataset but it should be able to generate someone wearing only pantyhose.