I agree, the last few ones have been washed out :/ I'll try making the next one a little more vibrant, as well as looking into the Grafx2 you mentioned on the Colossus pixelart :)
Nice scene! But as I previously stated in your shadow-of-colossus-inspired-work you really should do something about the washed out aspect. The triforce is almost invisible! :(
There are a lot of colors here that feel unnecessary to me, particularly on the sword and especially on the grass. A lot of the colors are nearly the same, and make the grass texture look more like JPEG artifacts. Really, with all art (and especially with pixel art), if your eye can't easily detect the contrast between two colors, you're better off making them into one. I do, however, like the cloudy effect in the background, and how it frames the focus of the image.