A simple Flux.2 workflow.

Initialize:
Load model, CLIP, VAE and optional LoRA.
Make your prompt (divided into 2 parts if you prefer to make separate prompt for edit instructions and overall).

Reference image:
Turn on or off reference images. It comes with 4 reference images, but you can easily copy-paste a new node if you need more.

Sampler:
Your common sampling options. I added upscaling options as well, since a few styles of what I do needed it. Batch normal and upscaled means you save both the initial output and the upscaled output. Blend adds a third output with the two blended.

Custom nodes needed:
ComfyUI-Easy-Use
ComfyUI-Crystools
ComfyUI-KJNodes
ComfyUI-utils-nodes