My render on the shinies (these aren’t official and are just my recoloring)

General reason: I just shifted their colors to their weakness

Browt shiny reason: Achem red from angry birds (need I say less?)

Pombon Shiny reason: Blue fire (with the teal outlines and stuff)

Gecqua: Geiko commercial dude (also need I say less?)

OMG IT IS AN ANGRY BIRD LMAOOOO

Achem Gecqua Shiny: (I used a huge shifter so that's why the eyes arn't ornage)

Pombon Doesn't have any direct one but now looking back on it I should have made it a dark dark blue almost black to reference the Carbon part in its name Pomerainain and Carbon

i love the blue Pommy (that's what i'm calling it), looks like it has will-o-wisps