For the technical aspect brought up on the "wind" lead (more likely a synth), it sounds like a minor mixing concern - it's mixed considerably louder than the other instruments surrounding it, which makes it punch through the rest of the mix too much and gives you less sonic space to work with overall. It presents a twofold issue: it makes one item sound out too much over the other items, and it limits how loud you can make the rest of the track (since it only takes one loud instrument to hit the -0 mark for a limiter to consider it "clipping"). It's not THAT problematic an issue, but it's something that could be toned down, improving the quality of the overall track somewhat. On the bright side, it's the lead that's punching through, so at least it isn't a texture or something overpowering the lead (which is a considerably worse position to be in).
Pretty gentle arrangement, and definitely a different direction to take the track. I like it, here's hoping you can get it to what you consider finished sometime soon.