His paintings have received both praise and criticism for his childlike style and subject matter, which is made complicated by the fact that they are also painted with a high level of skill and maturity of technique. The scenes are somewhat fantastical, images that seem to be straight from his imagination — jungles, people riding tigers etc. There also seems to be great depth to the forest setting, which adds another element of mystery his paintings defied usual artistic convention. Picasso was a big fan, as he himself worked towards a more childlike approach to art, which he appreciated as a quality in Rousseaus work