ArtStation - RED TIDES_52, yang qi917
I love cats, Jeff Simpson on ArtStation at https://www.artstation.com/artwork/Lawav
Creature research - interesting use of an insect style, different from a large amount of creature concepts, has a very natural and organic look to it.
Color Warz : Artworks « Visual Development – Concept Art by Giuseppe Severino
Fantasy Creature by Hsu-Yu-Hao More
Character and Art Concepts
Creature Spot - The Spot for Creature Art, Artists and Fans
Lil cub spread your wings by *vidagr on deviantART
Art, the Language of the Soul
Kaiju by Edin Durmisevic.
Concept art of creature concept for Guild Wars 2 by Kekai Kotaki
Beasts & Werebeasts
ArtStation - Creature Concept Art, Baldi Konijn