A posterization effect LoRA slider.
This works on any scene. Be careful not to add keywords that would contradict the effect (like photorealistic) as they might cause artifact issues at high weights.
The effect really starts at weight 1.5 to 2.0, and starts loosing quality after weight 3.5.
The sample images have the weights 0 (without posterization), 1.5, 2.0, 2.5 (high posterization).
Hope you like it!