Venom Dimension

I would like to see a Venom Dimension in the game. This dimension has 2 ores, 5 mobs, and 3 structures. This dimension has bedrock at the top but not the bottom. You enter with a 2x2 square of Crystal Blocks on the ground lit by flint and steel.

Venomite or Poisonite: Poisonous ore found here between Y-20 and Y-40 as rare as diamond that drops itself and can be crafted into 8 Crystals or smelted into a Venomite ingot used to make poisonous arrows, sword, etc.

Crystals: Non-poisonous, found here in the bottom 15 layers of the world and above Y-100 in Desert and Mesa biomes in the Overworld. This ore is more common than coal where it is found. Used to make armor and tools with 200 durability.

Cobra: Snake that can hold on to anything (including ceilings) and is hostile

Poison Skeleton: Skeleton that shoots poison arrows (Hostile)

Zombie Spider: Can climb walls and attacks with Venomite sword (Hostile)

Toxic Birds: Fly over the void and attack if attacked (Neutral) and can be tamed

Seeker Guards: Only found in Venom Lairs and will attack with Diamond Swords and armor

Venom Lairs: Venom fortress looted with some Venomite and Diamonds at a very high cost 

Flooded Halls: Long 3x3 halls with Poison chests with flooded water all over (Venom Stronghold)

Bird Nest: Small room containing 1 birdseed used to tame bird. 1 per world.

Weird Forest: Forest with upside down trees 

Stoneworld: Flat land of stone (lowest block at Y-5). Structures more common here 

Remains: Land with large holes over the void