Create an epic art piece featuring a larger-than-life portrait of a mythological creature, blending elements of fantasy and realism to captivate the viewer's imagination.

Craft an evocative piece of artwork that features a gigantic depiction of a creature from myth and legend, complete with fanciful elements seamlessly merging with touches of reality. This visual artist's tableau should be so masterfully created that it takes hold of the observer's imagination, encouraging them to immerse themselves in the majesty of the imaginary world being portrayed, and explore the intricate details of the mythological creature's physical features and mannerisms.