Hi there !
Here is a concept sculpting of a creature that i design. The Swamp Dragon.
He has a broad tail for swiming, short legs to stay at low profile in shallow waters.He can't fly, his wings are more for protection and to threaten any predadors or competition for territory or female.
He also have some small depressions in the lateral of his necks that serve for sense the eletro-magnetic field of his preys in the water.
I started with some 2d sketches, than i went for zbrush all the way ( sculpting, polypaint and render), final comp in photoshop.
Hope you like !
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Creature Spot - The Spot for Creature Art, Artists and Fans - Swamp Dragon