Quels types d'arts aimes-tu?
You used the singular "type" here, instead of the plural "types".
well yes i did because it is singular in the original.
Is quel type d'arts really wrong?
I suspect it is the same in English and in French, it depends on the answer you expect: a type/ un type requires one single choice (sculpture?); types would expect a possible multiple answer (sculpture and painting?)