>>347437721. Official art is limited due to constraint on resources, therefore you are setting this goal presumably including fanart.
2. Some things which are fanart are off-model.
3. There is no definable point at which something is too off-model to be considered a representation of the original.
4. Something drawn can be cute.
These things together make it impossible to prove you wrong OP. You can deviate from a pokemon's design and personality, no matter what it is, until you achieve something that is cute.