looks good. I think you need something counter to the two large rocks on the left. Maybe one of the left ones pushing back a little. Just me though i am not an expert.
As for light im running t5 42watt coralife. Its probably over kill specially since i dont have co2 yet nor know when i will. Dosing excel tho.
I think the hc will look good its what i went with. I was thinking maybe glosso to but i thought hc leaves would look better in the tank since its smaller.
I started one of these tanks too you can check it out on scape let me know what you think. Link