Looking for a drawing(art)/dancing school

Hi, I am looking for a good
1) drawing/art school
2) dancing class
for my almost 14 year old son. He's got drawing skills, which we would like to improve. Also he would like to dance. In Brussels would be fine. Language, no issues NL/FR/EN ok. I would be happy if you could recommend a good group or a class, please. Many thanks!!!!