I`ve always been a fan of stylistic leveldesign like the one of TFC or many Q3 community maps, and i also like this aspect in your map. But this cannot conceal that some areas look a bit too basic and some constructions look too simple. Toony style doesn`t mean avoiding detail at any cost, but accentuating certain elements.
The tree area shot looks best because there you found a good combination of detail and colorfull bonbon style.