Be aware that casting metals is difficult work, and carving metals tends to be a bit expensive. Depending on the metal you use, and the size of the coin, the small detail of this coin could very well be lost. I'm wanting to make physical coins myself, and am getting an education by someone who does them for a living. Just be aware that the metal itself doesn't necessarily hold its shape if used, and so the smaller details can wear off or wear down if, say, someone carries this coin in their pocket.

Love the basic idea, otherwise.

As to the name of your coin, I'm unclear... is this a name for the entire line, or is it for this particular denomination of coin?