Looks good to me.
I like that you've kept the right front open with the moss on wood immediately behind. Goes well with the slope up to the left side, with the hairgrass in the middle - suggests depth which is difficult in a small tank.
The background looks very jungly - but I never have a problem with masses of healthy attractive plants. Perhaps you could work on positioning the red highlights to make more clear focal points. The red plant on the right (ludwigia?) strikes me as a little too large for the scape.
Finally, I haven't made my mind up yet re: the moss on the powerhead.
My only question is what are you doing with this big old tank in the nano forum?!