The bad:
--flowers and their colors (red and yellow flowers)
--too much brown (darker brown)
--same textures used over and over (wooden fence)
The good:
--coaster type and parts of the layout
--building structures
--landscape with waterfall
Spruce up the screens using more colors in the foilage and try to mix up some lighter browns in there. I think you are a great ncso player and I expect this to be wonderful. Keep up the good work!
On the corkscrews, add in a space in between them. They are very tight right now haha. Anyways change the tunnel and keep building and you will be fine.
Colors are nasty (in a bad way). Also, way to much brown and bright flowers next to the buildings look terrible. But hey, at least you got some architectural skills.