As you may know, I have no "Mind's Eye" — I have #aphantasia. Now, as for Mind's Ear, I have a fantastic mind's ear for melody, but harmony while implicitly present is hard to articulate, and sound texture, like pictures, is absent unless I'm dreaming. How's yours?
Actually, as for sound texture, I can kind of "imagine" the textures that I know how to produce with my voice, by subvocalizing them. But that's as far as it goes, and it's of course monophonic.