Originally Posted by Urbish

The nose is too square and doesn't have enough/any shading... Also add more detail to the hair to make it less regular, it's pretty much the same throughout.

Looking okay so far, it's just a bit boring.

Edit: Also, add different shades to the hair, sloths aren't just one colour, they are a pretty colourful animal (not colourful, but they have lots of different shades).