I like the way the driftwood kind of pokes out in a few places. But, you are right, the crypts are a bit wild. You should harvest a chunk of them and offer them up for trade on something. It seems like you have a bit too many long, grassy looking plants. Maybe add a small leaf bunch plant (e.g. babytears / pearlgrass) and / or some branching stems (e.g. stargrass or Cabomba sp.) and / or some delicate leaved plants (e.g. Mayaca).
That's what my eye suggests,