ye well, pieces are never done i suppose
I'd add alot more reverb to the pads to make them more spacious. And do some verbing on more elements aswell is suppose.
I'd probably add distortion to just about everything, some subtle some less subtle.
Distortion is a great tool for scoping your sounds to make them more rich in texture. Doing the more subtle tweaks on alot of elements result in a real nice warm factor in the stereo out, cause it sums up all the subtelties and make it really noticable in the end
And no it isn't so much of a reverb preset, more a way of describing what takes place
Lot's of reverb can really add space to youre mix cause it biggens the contrast of space (3d mixing)
Long attack elements can usually get a away with lots of reverb. The only downside with lots of reverb is that it takes up alot of space/room in youre mix aswell, so it takes some carefull tweaking on full tracks.