An important Upper Palaeolithic cave in Spain where artists used exaggeration of proportion when painting a deer is:

Altamira

Explanation: An important Upper Paleolithic cave in Spain where artists used exaggeration of proportion when painting a deer is Altamira.

i think it's about 10 mins.

actually i think that's wrong, but i don't know how to delete this.

but who knows it might be right.

do you still need the answer?