Aha, have you considered making the statues shaped as fish (skeleton), also have them slightly damaged with maybe some seaweeds growing trough cracks to indicate their age and make it feel more lived in.
If you reach it you can make a semitransparent mermaid spirit thing appear. Here's one in OSRS:

of custom made models that you can then take apart and kitbash to make even more. Let me know if you need any help. I am not really a concept artist but I do know the whole 3d art pipeline.

Making a lot of the assets yourself to achieve consistency is pretty much a must to stand out these days. It is the first thing someone sees. I understand learning 3d modeling etc. can be daunting but trust me that with practise it becomes so much easier especially as you built up a library...

We need total war games especially shogun 1 till shogun 2!

It is Zaxo not Zaho