Constructive Criticism Help

[Aktikon]

It seems as though people usually post things like "Good job", and "cool" on my map, which is absolutely fine, and it's very nice and encouraging, but very few people have offered constructive criticism to help make the map better! If someone would be willing and has some time, please check the map out, and give me and my partner some ideas or constructive criticism, we would be much obliged! http://www.minecraftsurvivalgames.com/threads/windwashed-cavern-wip.28251/