Reprint from - https://civitai.com/models/206115
All credits to CorruptedCupid
For Illustrious: uses tags like pony & 1.5, Illustrious is kinda weird will have to mess with CFG sometimes 3, 5, or 7.
I have gotten better results by using Highres fix, 4x_NMKD-Superscale-SP_178000_G, base 704 x 960, denoise 0.5, 15 steps, upscaled 1.5. If you rawdog it you may not get good results.
DPM++ 2M Karras can sometimes give a sketch look
Eular a will have more cartoony look