WanderingMystic
Hero
I was thinking specifically the Eberron artwork not artificers in general. In Calimshan you have both clockwork creations but also just pure magical item crafters with no tech like influences. Moonshae or Rahaman will use carved staffs, stone, earth or wooden golems, charms and trinkets.Fashions are not tied to magic or technology level. People can dress how you like whenever you like.
Aside from Eberron, the other place you are likely to find a lot of artificers is Calimshan, where you can assume they wear fantasy-Persian outfits.
Also don't forget your Tech priest of Gond, the tinker gnomes of Mount nevermind which are more of a medieval mad scientist. Izzet from Ravnica