This tank has come a long way! It was fun reading this thread. Your plants are really starting to come into themselves.
I know you may be attached to it, but have you ever considered taking the upside down Y-shaped piece of driftwood out? In terms of composition, I think it would give the tank better perspective. The piece in the back corner reminds me of Halong Bay in Vietnam
. Although, I do like how the other piece forms a little roof over the mermaid
Either way, happy to see your success so far.