A 3 h Photoshop-Quickie.
Just needed to create something less complex. I tend to get lost in detail after some time, I need to practice keeping stuff simple.
Played around with perspective also a bit. I think it turned out nice.
This kind of Sea Dragons is very whale - like, their ancestors were wyverns and only had a pair of wings and feet, no arms and no tail. The wings became the two fins on the sides and the feet became one big tail fin.