For better results, use an explicit name of a muppet such as "Kermit, Cookie monster, etc" or simply use "muppet"
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A few sample pictures generated with this mode (more available here):
A painting of the cookie monster, very detailed, clean, high quality, sharp image, based on H.P Lovecraft stories
Negative prompt: grainy, blurry, text, watermark, inconsistent, smudged
Steps: 32, Sampler: DPM++ 2M Karras, CFG scale: 7.5, Seed: 3320437546, Size: 768x640, Model hash: 9b5251e8, Model: sd15-muppet-blip, Batch size: 4, Batch pos: 2
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An oil painting of kermit the frog muppet in flemish baroque style, very detailed, clean, high quality, sharp image, John Philip Falter, Very detailed painting
Negative prompt: grainy, blurry, text, watermark, inconsistent, smudged
Steps: 20, Sampler: DPM++ 2S a Karras, CFG scale: 7, Seed: 3762044222, Size: 512x512, Model hash: 9b5251e8, Model: sd15-muppet-blip, Batch size: 4, Batch pos: 3
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