Forgot to mention, try DPM, set the steps to 1 and goof around with config steps. Watch how it starts and evolves from 1 config to ~30 and use ultra simple plain text positive prompts with as simple as you can manage negative. Find something you like and set the seed to fixed. This is really powerful for making controlled changes.
If you step through the config number at ultra fine resolution of like 0.0001 or even less, you will see how the image generation evolves incrementally.
Lastly, look up neoteny in humans and pedomorphosis on Wikipedia. This is a window into a more scientific description of beauty. Not all the terminology is known to diffusion models, but simply skimming these articles will greatly improve your descriptive awareness.