Small improvements:
1) make both market entities/items different colours (tint). I recommend making them red/blue like the logistics chests.
2) make the market and its container more different sizes. I think if you make the market entity smaller so that it only fills the front wall of the container - that would be good enough. They will be easy to click on at a larger scale (zoom out).
3) Replace icons in Selling market with ingredient (resource) icons — it will be simpler to fix — We don't see among all the coin icons that every icon/button will sell. It is not convenient to use the hint when pointing.
Ideal fix here: generate double icons in once - a large one with the coin icon, should fill the full button (it's recipe target), and a small coin in the corner of the button cell for each source resource (ingredients) - so we can see what we sell (ingredients) and sell for what (coins).