Eye contact, even for NTs, can be complicated. Not everyone likes it as much as much as the general public (in the U.S.) seems to think they do or should, at least in part because it can be a very intimate experience or, on the other hand, intimidating, depending on the relationship between people--are they familiar, strangers, considered equals, etc.? Is a person introverted, extroverted, shy, ashamed, proud, trying to look confident even if they're not, or what? Someone might be busy with other tasks, mentally distracted, or angry with the other person in the room, or they might be overflowing with intense emotion they want to share, in need of deep comfort, keenly interested, confused about the other person, or at a loss for words for some reason--and perhaps only facial expression and eye contact will serve that. Do you want to flirt or do you want that stranger on the sidewalk to leave you alone? Eye contact--or the absence of it--can send a powerful message sometimes.
Personally, I usually want most people to feel comfortable around me, and I understand that moods and preferences vary, so unless their perceived attention to me is overly excessive or practically non-existent, I don't take much notice/take it personally, and I don't necessarily make it when I "should," either!
Currently, I have a large blemish on my chin and am experiencing many moments when I would rather be invisible altogether, so there's a decreased chance that I'll make eye contact with anyone!
Forgive me if this is unsolicited advice, but IMHO: it may serve you--ND or not--to be aware of when eye contact (or "facial attention") matters and try to work some in if/when you can, if/when you have to. The rest of the time, do you!!
BTW: Erewon, those pics are amazing. Deep.
Steven7, I love making eye contact with all kinds of animals. I'm dying to know what they're thinking and feeling and keep hoping we can connect and understand each other somehow.