Poseidon, Lord of the Seas
Based on the Greek god of myth. You all know him. And no, I'm not copying Lord Ganthor's Greek gods idea - I've been working on this since yesterday, and he just beat me to the posting! 

1. M4
2. Nicolas for M4 (texture)
3. Jason for M4 (morph)
4. Valens Hair
5. M4 Beard
6. Headband
7. Modern necklace
8. Celtic loincloth
9. Trident
10. Ocean prop (removed the img and added refr/refl nodes)
11. Rain

Dolphin is the P4 dolphin, free with Poser. Background was downloaded for free from stock.xchng - http://www.sxc.hu/ Lighting is standard Poser 8 AO lighting.

Rendered in Poser 8. Post work in Photoshop CS4 (just to smooth out the waves in the background since the ocean prop is kinda choppy when you make it big).