Tanks looks good. You might try Pygmy chain sword for a low light ground cover or use some of the smaller crypts. I think you may have some non aquatic plants in there right now though. The smaller plant to the left with white edges is Dracena sanderiana. It will live for awhile and then die and rot in your tank. it also looks like the taller ones might be cherry hedge not 100% on that from the pictures though.