I love this!!!
The only critique I can find is that the terrier looks like is about to fall off his chair... It's like he leaning back to try to find his balance or something. I think just fixing the perspective on the chair a little would fix that!
Other than that, great work! I love the color palette.
Would you mind sharing Will Terry's tips ? I struggle with brushes too...
Can't wait to see the final version of this one!