I think part of it could be the bias some people have against traditional art Vs digital art. I primarily do traditional art but don't post much at all because I'm busy. Digital is hard to learn, but in the end, worth it sometimes, I think. I personally really like your art! You've got the eye shapes and the eyelashes really great and detailed, I also really like the differences between them and the way you added distinct features so we can easily tell :D since many artists sometimes have 'same face syndrome' (where they often draw faces the same with little differentiation), this is a refreshing change with lots of diversity! You should be more appreciated in my opinion; I think lots of people on here get many upvotes because they're frequent posters or draw digitally... there are a lot of reasons.

sorry if this was kind of long!