ruined it.

There's way to many objects(not just gold) which make the loading time long. Some of the objects(like the floor gaurds at the bottom) are rendered useless by others. Try to tone down the amount of objects, make sure everything does something for the level, and build it around a tileset to give the map "texture". Also, closing off the turrets at the start defeated the purpose of putting them in. One last thing, Making a map with only one-ways are usually cheatable. There's a way of jumping off a top corner of two that are placed like the corner of a box, that will let you move through them.(That's not an issue in this level but just want to let you know.)

Hope you appreciated the constructive criticism, and I hope it helps in the future.