Use:
Sampler: DPM++ SDE
STEPS: 4 (4 to 6 must work)
CFG: 1-2
CLIP: 2
Workflow with upscale adding details: https://**********/template/699376205413079340
The model is based on the following work: https://arxiv.org/abs/2402.13929, combining several models and LoRAs with this new work. The model is not completely ready and fails when you go outside the given parameters.
I hope you enjoy it.