You did a very good job keeping this model geometrically sound. Nice edge loops, good uvs and texture, character could be set up for blend shapes pretty easily. When i look at the reference with the result its pretty close. I think your model looks a bit happier than your reference

I can tell the difference right away, you captured the grumpy. Nice addition with the Depth map and background. Well done.

very nice modeling i see u omitted the double chin ,ahhh!!!! wish life was made of vertices . sss looks very good on the ear full marks author