please

constructibe critisism is much appreciated. im working on a new one so i want somemore tips on my old one so i know what to improve on.

this one is in no means finished, it still needs alot of work, but mostly i just wanted some help.

http://www.coastercrazy.com/track_exchang ... ?tid=12893

its called dune jumper. and its my first succesful no limits coaster.