Thanks for all the responses! I liked reading all of them. Really just wanted to post (after seeing similar ones) because we get such random guesses.
In his movers and shakers class, the instructor said, "he has such big eyes! Is he Greek?" Lol! I never really attribute features to an ethnicity, but it got me curious what other people see.
He is Filipino (DH is full Filipino) and plain American/white/whatever (I'm half Italian and half Western European mix).
Someone responded saying he has similar features to her kids-I love how if we have mixed Filipino kids they all could be cousins! So cool! :) DH's cousin is 5 and is the same mix as DS. Her dad (who is white) looks nothing like me yet the kids look similar! Awesome!
Anyway thanks everyone for the kind comments-glad this post didn't get out of control!
Also he IS cross eyed, very mildly. Common with Pacific Islanders and really anyone who has a very shallow nose bridge. In the pic, he's focused on the camera and is slightly cross eyed (like most kids do, regardless of their nose! Lol). It does not affect his vision so I have no concerns.
Also my username is lizmartinez. I posted anon so people who know my husband is Filipino couldn't easily give away the answer. Plus the obvious issue of a display photo. :)