Thank you for visiting the site and for your feedback. I forgot to go into more detail about the fog settings in the initial post. In the effect file, which is just a text file that can be changed without recompiling the .exe, I have variables that can be changed to set the what type of fog is being created (I believe this screenshot was linear fog), where the fog starts in relation to the camera, and where the fog ends in relation to the camera. Changing these can easily adjust how much fog is drawn into the scene.
The development cycle right now is more of a learning cycle then straight development cycle. All of my games in the past have been 2d games, and didn't require trying to guess what the average-gamer's system hardware was. With 3d, it's been difficult to try and balance features that look good and ones that will run on most computers. I've spent a lot of time optimizing the code to get it to run at a stable framerate on even the slowest computers. Right now, I can get 20-30 fps on my school computer, which is an 800 MHZ computer with on-board video. I was actually limited by my own hardware, because I ran a GeForce 2 at the beginning of development and just recently bought a new high-end system. After checking different hardware surveys, such as the Steam survey, I've decided I can go much higher. My current minimum machine will have to support up to Shader 1.4. I'll post some new screens once I am able to work on some more detailed scenes. Thanks again for your feedback, it's helped me gauge what I should focus on.