He's just being his cute self in his holiday sweater showinf TUDE.
"It's ok if you don't like me. Not everyone has good taste".
Arthur was ecstatic to do this modeling gig to make this pretty mug for you eventhough he usually doesn't get out of bed for less than $10K jobs. 
The mug is 11 oz., BPA and Lead-free, microwave & dishwasher-safe, and made of white, durable ceramic.