Alright, so, suli-jann are described as follows; "Sulis are difficult to recognize by sight, since they resemble ordinary humanoids with, perhaps, an occasional flash of elemental light in their eyes."
All well and good, matches up with Pathfinder sulis, except one thing; the accompanying artwork is very distinctly non-human, with grey skin & black sclera & orange irises. I guess it could be a suli damai being that they're the one humanoid race with naturally grey skin that I can think of off the top of my head, though they still don't really match up.
Now, granted, I'm not really complaining because the art depicting the suli is actually one of my favorite pieces of character art from Starfinder thus far, but I feel like this was a situation where the artist and the writer were not communicating.