Hi Wes welcome. Could you please try to downsize your images a bit? As of right now with my big monitor I still cannot see without scrolling the entirety of the pieces you are posting. I would say perhaps keep them to around 800x600 or 1024x768 ish regions to show to the broadest of audiences.
The last painting of the coastline you did seems way too "textury." Adding tons of photo textures to the bg and then painting with an airbrush over it will not help your art skills grow in the direction you would want them to. I would suggest that you keep going in the direction that you did with your first post, which was try to do it from looking at real life. Learn your skills from observation. Photo textures inlaid in concept art is a very hard thing to pull off right and I do not think that just at this moment you are there yet. Stick to your basics and as another poster said "work your butt off!"
Hope to see more, and NEVER give up.
Keep your dream alive - Feed it daily!
"The true essence of swordsmanship is like the willow blowing in the gentle breeze" - Tesshu (someday my art will be like this)