The shape of the rock and the fact that the majority of the plants are growing behind it makes me think of a garden wall. I think you should keep looking for some nice driftwood. It would be nice to see just a peek of the plants in the background. If you had a rock feature with some gaps in it that might improve the look. What do you think about some small foreground plants? Also, to give some depth to the tank you might want to space out the swords. I don't know if you have enough room though.
I really like the clean look of the tank! I just bought some green fire tetras myself. I think they look great on a dark substrate like yours!
I agree about the rock, just not so sure about using driftwood. For some reason I feel like i'm incapable of nicely laying out a piece of driftwood.
The tank is about 14x14x24, and i've got two 9w 10000k lamps on it. Can't remember what filter I've got off the top of my head, its whatever the tank came with. Also i'm dosing with excel daily.
Don't think like that! There is not one ounce of artistic/decorative skill in my body, and I think my tank looks great. Just keep an eye out for some driftwood, and you will find that perfect piece. You'll know it when you see it. Take a look at mine. Not trying to hijack, just giving you ideas. The piece on the right was something I ran into, tied some pelia, java fern and an anubia, and plopped it in the tank. I think it looks nice:
I like your start!
I agree on spreading out the swords and the use of foreground
plants for more depth.I can tell that you are going to
get depth from your background plants real soon.A few anubias or mosses
tied to your black rock would look striking along with a green foreground in front
and or all around the rock. The rock and the gravel would tie in nicely with some green scape on each. A black backdrop wouldn't hurt either. Good luck! ;-)