I wanted some synths for Illustrious as I missed them from other models, and here we are.

It's my first lora so it's a lot of messing around. The eyes tend towards normal, not sure how to get it to more consistently make digital eyes without extra prompts, but you may find things like visor eyes and/or glowing to be helpful. Some other helpful tags are segmented [part] such as body. To only have synths you can try no humans but it can be a bit fussy. If you add quality tags it tends to veer more to 2.5d, but if you want a flatter style, drop quality tags and add line art and/or flat colors. You can check the tag frequency in the model for some other useful tags. It has a preference to duotone white/black synths, but if you give it multicolored body and something like red and blue skin it usually pays attention. It generally understands feathers and wings although these are uncommon features for synths and don't feature much in the training data, so it tends to be more the model's intuitive understanding of such concepts.

With portrait size images, it seems to often add a soft blur along the bottom, though that seems to be an Illustrious model problem when rendering at larger sizes?

Feel free to do what you like with the model, except sell it. It's freely available for all.