What is a painting? I think the whole deal can be more or less split into two categories.
1) You go to school and you are taught how to use numbers effectively.
2) You do not go to school and your effective use of numbers is determined by experiential exposure.
The same goes for many things.
As I mentioned previously -- you may have missed it -- South Korean infants are taught Korean with their parents emphasizing Prepositions rather than Nouns. This leads to a small developmental period where are cognitively more proficient at spacial tasks but poorer at categorisation compared to other infants.
The Russian blue thing is just pretty much the same thing. Personally when I think of blue I do not imagine Sky Blue I imagine something akin to ultramarine (likely due to exposure). Habits make distinctions easier, I do not see this as necessarily causing perceptual differences but I have been of the mindset that languages most certainly differ and can influence how we perceive things.
@Moliere As above. My point being that a Painting and a Drawing are known habitually according to tool use. A Paint Brush is directed more often at a larger canvas than a Pen or Pencil. Also, a Pen or Pencil is associated with more rationalistic behaviour in academia, whereas a paintbrush is more of a household item possessing something of a heavier domestic quality. I am being more speculative here!
My other main point was how Paintings and Drawings are Static and encourage the audience to spread out in a spacio-temporal sense, where other mediums of Art (such as Dance, Film or Music) Collapse a spacial and/or temporal experience into a moment. This can get quite complex when you get into it and is something I have been mulling over for years now.