This is a *splendid* redesign! I really like how this take on Bittergiggle has a plethora of unique visual traits, but still maintains some of the original design's primary aspects - like the split face and jester theming.
The use of blue and green - as well as lighter shades for certain parts of the body and clothes - are a nice blend of colors. Additionally, the smiley faces on the tail are a great touch!
And before I forget to mention, I enjoy the subtle details of the snake symbol top-scars, and the heart shape Bittergiggle's devil-esque horns(?) seem to form.
All-in-all, this is a really creative take on Bittergiggle! Honestly eager to see more V2 redesigns of the other Banban characters, if that ever happens.