Your cat's name is Nightmare.
I seen this character somewhere in an episode of Yonder Ho.
Not much is known about this cat.
Nightmare is obviously a mysterious creature with some potentially interesting history.
Would it be possible to reveal more aspects of this character?
What is his origin?
Is he a creature from hell?
Is he good?
Is he bad?
Looks can often be very deceiving.
Some types of dangerous animals are actually very cute.
Dangerous animals like nightmare is not a very cute cat at all.
He has sinister look to his eyes.
I like the usage of different lights and shadows.
I really love how you use shading to enhance your simple drawings.