Well, it's about time, BigIan!
I really like it a lot. An excellent effort, and the plants look very healthy. Don't worry too much about scaping right now, the tank is still quite young. Replacement for cabomba? Not liking it or is it doing poorly? If you like a similar leaf shape, two genera spring to mind, Limnophila and myriophylum. Limnophila can do better with moderate light, myriophylum does well with higher light levels. If you're above 2WPG, you should be good to go with both genera if your water isn't too hard. Limnophila does better in harder water than myriophylum. In really hard water, I haven't grown any of the three successfully.
llj