Man that's great. I was impressed by the whole collection, especially some of the tracks, it really can create needed tense/atmosphere in the game. Consider making something like that for medieval fantasy setting, would be nice. Definitely will use these tracks in future projects if it fits the atmosphere.
By the way, can you specify if it's necessary to mention you? Like, I'll definitely do that, but it will definitely be helpful and will increase usage of your tracks. Not to mention this way you won't need to reply dozens of people asking for permission.