Realistic Deer Sketch (inverted)

Inverted Sketck

Hello everyone,
This is one of my inverted pencil sketch of a reindeer.
So, this drawing took me around 5 hours to complete. I used apsara pencils (2H, 2B, 4B, 10B) for this one.

And if you don't know about inverted sketches then a brief explanation is:
Inverted sketches are the negative images, the input colors we are implementing on the sheet is the negative of the actual color and after our final completion of the drawing, we click its photo and inverts its color by editing the photo to its negative one.

Original Sketch

So, here is the comparison between the Reference photo and my Sketch.

Hope you like it....