That looks quite nice. I would move the UVB light over next to the basking light if you can. That way the most intense UVB will be over the basking area along with the highest temps.
Not sure I'll be able to. Excuses the dirty glass. As you can see the uvb goes all the way to the basking light and the basking light holder is lower the the uvb, so if I moved the uvb forward and down towards the basking light the holder would block it out