Last I checked all the Jhin loras I saw on Civitai weren't for Pony, so I made one for Pony.

Lora weight 0.7, Clip Skip 2. Often will generate him with red eyes which he seems to have. 'Red Eyes' in positive prompt reinforces this, in negative prompt it tends to give him blue eyes. So if you want no visible eyes then just don't include 'Red Eyes' and hope for RNG (will likely vary by checkpoint used) or figure out a good way to prompt it. You can prompt for him to have guns but weapons and especially guns tend to be really messy with AI art generations. I'd recommend generally having all the gun-related prompts in the negatives if you aren't seeking it.

Just the default skin outfit, decided to keep it simple. Looks quite nice with the DragonSlayersTavern checkpoint IMO, first time using the checkpoint but the results seem great (not the most up to date version of the checkpoint I think, but still). Hassaku which I mainly use looks good too. Note that his mechanical arm sometimes be more of a gauntlet instead.

Trigger Word: Jhinlol

General Look: 1boy, mask, hood, red scarf, cape, shoulder armor, armor, gauntlets, gloves, black gloves, pants, boots

(Obviously skip 'boots' for example if you're going for more of an upper body image.)

Firearm: holding, gun, holding gun, handgun

Negative Prompts: render, text, logo, url address, simple background