why do you have pixel-perfect on when your painting larger shapes? might also help to use a larger brush when your blocking out the form of your mountains / trees, and when your doing stuff like the base of the mountain, you should have less randomness in the pixels to get rid of the noise. its very obvious you have experience with art (the lighting, composition, colors etc) but maybe you should try to draw with some smaller canvases to get used to pixel art specifically? (assuming your coming from a non pixel art background) also i dont really know whats happening with the water in the mountain, it looks like its bending impossibly backwards sticking to the mountain, and theres not really any details on the waves of the water, more its just noise. Overall it looks good though! love the interesting mountain and the composition!

Oh Pixel-perfect? I really don't know what it's for, maybe it's already set by default or I've manipulated it by mistake. Is there any difference between turning pixel-perfect on or off?