Do you have any advice on how to improve drawing realistic faces? Thanks!
I’m not sure if you mean drawing realistic faces in general or how to paint faces photorealistically but imo the most important aspect of both is being familiar with the general proportions of a face, e.g. this:
And of course these proportions vary by individual, and an infant isn’t going to have the exact same proportions as an adult, but knowing the general rules helps me a ton, both in drawing without reference and trying to capture likenesses. (There are tons of resources out there dealing with facial proportions that can explain it better than I can, so if you’re not already familiar with this stuff, I think it’d definitely be worth it to google some)
If you mean painting photorealistically, then I would say practice is the most important aspect. Paint a lot using reference, and try to get your painting as close to the reference as possible, and if it doesn’t look exactly like the reference, figure out why and learn from that. Treat facial features as three-dimensional objects that reflect light and cast shadow depending on their shape. If possible, try drawing/painting from life. That’ll give you a better sense of the three-dimensionality as well.