I would make a few suggestions if you don't mind:
You might want to switch to Zoo Med's "Reptisun" 5.0 UVB. Several studies have shown that this is the best bulb on the market.
Is that basking light one of those enhanced UVA lights? If so, it's ok, but you can get a cheaper bulb next time as your flourescent will provide sufficient UVA. Well, at least a "Reptisun" will.
For basking, I have, and highly reccomend, one of those ceramic elements that screws into a regular incandescent socket. It produces no light so I can have it on at night (I have a larger, 55 gallon in a cool room). They are somewhat expensive, but they last FAR FAR longer than an incadescent bulb. My has been running continuously for 3 years.
It does sound as if you have a male and a female. In addition to what you've mentioned, take a look at the relative size of their heads. Males have more robust, longer heads, than do females, relative to the size of their bodies.
Lastly, you may want to consider a larger tank at some point. 20 is, in my mind, bare-bones minimum for two anoles. Even though a male and a female will not stress each other as much as two males (obviously), a male will still bully a female. If she starts hiding-out all the time and losing weight, you may have to seperate them or quickly obtain a larger tank. I have a male and a female in my 55. This is bigger than necessary, but my female is still stressed by the male a little more than I would like.
Also, it can be a little easier to get a proper thermal gradient in a larger tank. And, you have the tools to keep the humidity at proper levels in a larger tank.
Sounds like you are on top of things...
Post a pic sometime.