I kinda think there's submarines under and to the right of Taigei. But aside from what's possibly I-8's hat, I can't tell who else it is from the little that's above water.

I also love it when artists show how oversized 8 inch guns on light cruisers are.

I really like that the artist used a mix of real-life ships and flags. From left to right:

1. New Zealand White Ensign, flown by likely an Anzac-class frigate.
2. Flag of the Japan Maritime Self-Defense Force (Japanese Navy), flown by Jintsuu.
3. Flag of the United Nations, flown by Taigei.
4. Flag of the Thai Royal Navy, flown by its flagship, aircraft carrier HTMS Chakri Naruebet (CVH-911).
5. Flag of the Solomon Islands, flown by RSIPV Gizo (05), a Guardian-class patrol boat.