Architecture/Enviroment: Doesn't look much like ruins to me, but still very good architecture.
Textures: Bad texture choise. Do not fit barrels in that way it looks awful.
Jumps: Very good jumps with lots of combos.
Bugs: -link- - what I'm talkin' about barrels; -link- - match textures -link- - Match textures, also add some kind of grate not only black texture -link- - maybe if you could go inside that thing and only the side columns couldn't be passed -link- - maybe if the water was like a waterfall moving along the canal.