Three challenging areas surrounding a snowy mountain base. From a visual perspective, I loved the Serpentine area. The rest of the build was solid - although the beauty of the mountain and one of the towers is a bit hard to admire at close range. Challenge is wholly in combat, particularly how to restrict mob pathing to avoid being overrun. The central base and minor checkpoints give you just about everything you will need in terms of basic gear, with enchanted gear obtainable through a mildly complex Villager trading sequence, and high-level gear/tokens hidden throughout the 3 challenge areas. The 3 areas can be faced in any order, and basic necessities such as food, wood, and lighting (glowstone) are provided such that the player can focus on the fun stuff. As far as miniCTMs go, I feel this is a very good example and length.