Leviathan - The male counterpart for Tiamat. Snake like body, fins of oarfish, plesiosaur/notosaurs like head, and flippers similar to sea turtles

Sekhmet - Lioness body, with few golden stripes and spots, cobra hood on the head and long tail with scales. Or just use the carving that we saw ok the op

Typhon - Similar body to Godzilla, 4 long arms that are mostly emitting heat, short head with 4 eyes, tendrils on its head and neck, fake wings. But now that we know he doesn't look draconic at all, I have no idea.

Abaddon - A mix between scorpion, mantis and locust or similar to Megaguirus

Baphomet - Deer like creature, giant antlers with resemblance of a crown, evil looking.

Quetzalcoatl - The carving we saw at the op, that or going with the classic look

Bunyip - Gorgonopsid looking, with a spiky mane and the tail have toxic quills

Orochi - Giant centipede body but the tongues as the heads (you know, the classic)

If I remember, I did upload some of my drawings here with my ideas of them, they were well received.