Looks fantastic, but holy shrimp do you need that large resolution? I'm very jealous that you're able to make this and I assume without any trouble. I can't even exceed beyond 2560 x 1440 resolution without lagging. Regardless though, great work!
Although, if I would like to critique something to make it even better. Increasing the contrast of the shading with Pepino? and the green dude (forgot the name at the moment)? Would not only make them more standout, and is realistic since having a strong light source would create stronger and darker shadows. It makes them more pop-out more.
But yeah, it still good regardless! (Geez I need to sleep now).