Read more about the technical capabilities of Aventis Horizon, https://civitai.com/articles/4828

Notice: I absolutely adore Aventis Horizon v3 and how it works, it has it's own particular quirks as any model does, but very little that I'd care to modify and change. I have several unreleased versions and I'm just not happy with the changes. My new model Penrose Augment is a spiritual successor and the closest thing to a v4 that I've been happy with, so if you like Aventis, please go try Penrose Augment!
V3 BAKED VAE: SDXL FP16 VAE Fix
V3-Plus BAKED VAE: SharpSpectrumVAE by Pitpe11 - Don't have it? Get it here!

Introducing Aventis Horizon, a general purpose model built using bleeding edge techniques for mixing prompt adherence with artistic and stylistic flair, improving emotional expression, improving artistic comprehension, and mixed media generation. Using custom trained for purpose models in combination with royalty free community resources for an artistic twist.

For best results:
CFG: 1.5-7 (4.5) || Steps: 16-250+ (20-60)

Make use of stylistic descriptors, style types, and mixed styles prompting. If you have trouble with basic generations coming out oversaturated try adding the following styles to your negative: 8bit, pixel, cartoon, anime, unrealistic.