I think it depends on the place in the world you are flying and on the time of day, time of year and weather.
For example in Austia and Southern Germany I find the colors mostly very pleasant in spring and summer and in the sunshine. However, since the light in winter is quite different, which MSFS manages to simulate only to a degree, and since vegetation looks completely different in winter, I think the colours are to green in winter. Also during very bad weather in summer, this dreary bad weather vibe doesn’t work as well as in real life
Another example is the Canary Islands.
They doesn’t work very well, because all the Bing aerials are much too green and brown. All the areas where you can see volcanic material - that in real life (depending on age) is black, dark grey or oxidised brown - looks completely wrong. This is especially noticable on the Southern part of La Palma, around Mt. Teide in Tenerife and especially Lanzarote.
There’s a set of aerials available for the Canaries but they are about 10,-€ each for every island and that’s too rich for me.
I do not think this is too much of a dealbreaker. This is more or less cosmetics and I don’t really fuss about it. After all as I stated above the way it looks to the ■■■■■ eye changes with weather and season anyway, and if the Canary Islands really are to green for me, I just pretend it’s the tint of the cockpit window in combination with my sunglasses
That’s one of the points I was trying to make: left side looks like spring or summer (without a draught), right side looks like winter.