Glory to Jesus Christ!
I think this post is just fine. I just wanted to make a little possible clarification to what you have posted here (from what little I know :shrug: ). I realize it can be confusing.
If I am not mistaken, actually in the Greek East, it is reversed. It is the more commonly red which is associated with Divinity.
Usually Latins making icon-like paintings don’t follow that. Due to western custom the Theotokos is associated with the color blue in a big way, so they seem to dress her in red under a big blue cloak so that the color blue predominates.
I think that normally in the Greek east Jesus should be attired in red, sometimes with a blue cloak (the blue cloth is often not covering up much, the red is sometimes very prominent but next to the skin). As it is, in the featured icon we have been discussing Jesus and Mary are both wearing red next to the skin, which might imply to an observent individual who has been exposed to iconographic art that they share a Divine nature. It is a potentially confusing subliminal message that is best avoided.
Over the clothing next to the skin (which symbolizes the essential nature) Christ puts on humanity (blue or similar outer garment) and Mary puts on Christ (red or similar outer garment) as we all should, hopefully.
It is pretty evident that people are imitating the eastern style because they stick to those colors of red and blue. If I may suggest, I think it would be nice and more authentically western (and appropriate to the thinking) with white under blue for Mary. I am sure some very nice paintings can be developed in that color scheme, so long as Christ is dressed in a different color exclusive to Him.