Yep, that there is a princess-on-a-unicorn dress a la Despicable Me 2.

Transcript:

Mr Bugg is wearing a sort of dress thing that makes it look like he’s riding a unicorn. He is wearing a sparkly tiara and is waving a star-topped wand. Mrs Bugg, meanwhile, is a Jaffa, with staff weapon in her hand, branded god-symbol on her forehead and thousand-yard stare on her face. Her ensemble is completed by her now-traditional black boots.

The text reads: “And some cosplay Buggs for fun.”