[Markulous]

Personally, I find the composition a little lacking (it could do with another element in the foreground) and I'm not too sure about the long exposure. OK, so it's provided a bit of a reflection but despite the lens pouch technique (which I find interesting) there's still a bit of cloud movement blur detracting from the resulting image. Lighting seems somewhat flat (hence the comments about levels, I guess) - and I think it is level (physics states that a reflection will always be on a straight line from the subject - you can't bend light!).

Whilst I'd agree with the comments about some who slavishly use (or misuse!) filters and PP, I'd also suggest that maybe you're slavishly sticking to in-camera. Nothing wrong with that and a laudable goal but it'll never be the best final solution 100% of the time - I'd suggest it's the best possible start point - with a view to possibly enhancing further.

Technique-wise, I tend to use blending as my preferred method, probably as I then don't have to use/faff around with (or misuse!) grads and also as I've been using computers for rather more years than I care to admit (but still don't use effects). When I started landscapes, I concentrated on composition, keeping the gear simple and mastering that - so rather leap-frogged the necessity for filters.