3 rocks used
glosso for the front
hydroctyle japan for the middle
hydrocotyle verticillata for the back
and fissiden on the rocks
lmk what you think sorry but i suck at taking pictures of scapes
It looks good the way it is but i think the rocks lay too flat. Once the plant grows and carpents the rocks will barely show. Also the slope you formed i think woul be nicer if steeper but you already planted. My my opinion.
If you look at the "horizon line" formed by the hardscape it's a single, straight line - in my opinion it would look better as a "wavy" or "ridged" line as opposed to perfectly straight. Maybe try rearranging the rocks to add height / dips? Looking good otherwise!
The rocks aren't tall enough. Once the plants grow in, you won't be able to see them very well. If you can, try using some eggcrate to prop them up out of the substrate. Also, the hydrocotyle is a very leggy plant; something denser would probably look better.