That is really a great improvement! Really nice!
The rock is smooth enough to work with water.
The rock is large enough to make it look good in this size tank, and the mixed sizes are very natural.
The color works well with the substrate.
The layout is off center, not symmetrical. This is very good.
Love the 'root' coming out between the rocks! That is great!
It will be nice to see this as the plants grow in. Please keep updating us!