I know it seems small but I would consider 2 lights in your pool...we had our pool built this year and it is strikingly similar to your design. In the beginning our builder said one light was enough...just before they sprayed the gunite I changed it to 2 lights and in the end I was very glad that I did. I put both lights on a dimmer because the builder said it would be too bright but so far I have never touched the dimmer.

One other point that I saw someone else make was an auto filler/drain. I opted to not do this and it has been the largest pain with my pool. I also live in the Houston area and you know how much rain we have had lately...i have had to drain the pool several times in the last few weeks just to keep the water from overflowing...likewise last summer I was adding to the pool every other week. All it takes is one time to forget that you are dumping or adding water and the investment of an auto filler would have been paid for several times over.