Main prompt tags: tummigummixl, anthro, solo, male focus, blue bear, brown tunic, red cap with feather, shoulder bag <------ should always be included

Additional tags for style choice:

• for the retro TV show style add following positive prompts: cartoon, toony, retro

• to avoid the retro cartoon style put cartoon, toony, retro into negative prompt

• for mixed style only put cartoon into positive prompt

Recommended samplers:
Sampler: DPM++ 2M SDE Scheduler: Karras CFG: 6.0-7.0 Steps: 20-25 Lora strength: 1.0
Sampler: Euler Ancestral Scheduler: Normal CFG: 6.0 Steps: 20 Lora strength: 1.0
Sampler: euler_ancestral_cfg_pp Scheduler: Normal CFG: 1.0 Steps: 20-25 Lora strength: 1.0

Prompt tips (green - positive, red - negative):
- blue bear because Illustrious will turn him brown too often
- fat if Tummi is not generated plump enough
- base attire consists of: brown tunic, red cap with feather, shoulder bag, sash, sandals --> add or remove these depending what you want to achieve
- sandals will force full body images
- pajama version: white cap, white pajamas (instead of brown tunic)
- red cap with feather into negative positives to remove his hat
- black eyes will help reinforce cartoon style since Illustrious likes giving him detailed colored eyes
- 4 fingers should help to get the canonical version of Gummi hands
- vhs filter will give the style even more retro feel closer to the original cartoon
- try using shoulder bag in negatives if his shoulder strap will appear duplicate or appear even if you didn't prompt for it,

The LoRa should support all kinds of Illustrious checkpoints. Tested working well with the following:

• Nova Furry XL v5.0

• WAI-NSFW-illustrious-SDXL v12.0

To improve details:
- generate using higher base resolution (e.g. 1216x1216) or use upscaling / highres fix - especially when trying to do full body poses

- for fixing wonky face/eyes I use FaceDetailer node (comfyui) + Adetailer Face finder model

Last image in the gallery can be imported into ComfyUI with a basic workflow:

Just Copy&Paste into ComfyUI (you might be required to download missing nodes)