Not a pro here, just making some illustration posters for my own B&B, mostly fumbling through tutorials. Came across this Jester Mix on Civitai and it’s totally my vibe — one model can do both 2D and 3D, and it actually keeps the original character design intact.
The author’s instructions are pretty straightforward: for 2D, just throw “official style” in the positive prompt; for 3D, add “3d, official style”. The negative prompt list is the usual stuff — worst quality, low quality, text, logo, watermark, etc. Sampler’s Euler a, steps 20 to 30, CFG 4 to 6.
I whipped up a few images of our B&B mascot — 2D version for stickers, 3D version for the front desk standee — and the style actually carries over seamlessly. Saves me the hassle of juggling two models. Super beginner-friendly too, no need to mess around with the parameters yourself.