I would suggest you to put version for previous tModloader because not a lot of mods updated to latest tModloader and it means that not a lot of people would play with your mod until their mods update.
Also here is my opinion about this mod: I like it. It adds not a lot of content, but that content is well made. And sprites are nice. I like every sprite of your mod except Frozen Chackram because that sprite doesn't fit terraria style, so it should probably be redone. Other that that, great mod!