I really like this too. I like how you have incorporated two kinds of stones into the buildings. I also like the way you have "stacked" the company name, this is different than any other design which is good. It's Sunday afternoon here in Canada, but tomorrow I will get the owners of River City to review the new entires and the rankings may change based on their comments.
The one thing I will say is that I like the water element is looking close to what Bordo did in design #5 for example, could you submit another version with a different approach the the water? Thanks!
Here is another Idea I had. My thoughts were to do a mark that was a balance between artistic abstraction and architectural modernness, a shape actually cut from stone place above a water system. The flag stone effect gives the mark , in my opinion, a very mayan / rustic / earthy / historic feel. So I blended, to the best of my ability, these elements and this was the result. I wanted to do something very distinct, something that could not be seen as another type of company, so I took a chance. I hope now have a better understanding of where I was coming from with this mark. Thank you.
Here is another idea I had. I want to go totally left of what I was doing. I found a font that was modern and elegant and made the company name into an acronym then incorporated that with the flag stone motif and this was the result. I hope you like it. Thank you.