Aquamarias Species Check - Design Update

I've never made a species before, but I've been thinking about this one kind of character, but their design felt like it could be more a species than just one lone person.

I don't know if this has been done before, so if it has idk, I'll delete this.

My idea is a species called Aquamarias - they're mer-creatures who live in their own world. This world, however, connects to others (from your character's world to modern world, etc) via fountains. Their scales are actually the coins people toss into those fountains, and it's said that getting a coin from these creatures provides you with a wish.
Trinkets are allowed on Aquamarias, with trash being common (but you can still have one without), simple trinkets being uncommon, and rare jewelry like rings being, well, rare.

I'm collaborating with Motherbeast on this, and we're still ironing out traits and such. I just wanted to see if someone would be interested in getting one if we ever released them?

Updated 1/2/18:

We have a trait sheet scrambled up with a little lore on the Aquamarias! We'll hopefully have some designs out soon to serve as examples!

Updated 2/5/18:

Not only did we slightly update the traits list, but the first batch of Aquamarias are ready! Three artists worked on these, one for each tier. We'll showcase one from each person for a day or two, then unleash each batch for sale! The Aquas shown as examples will also be for sale (except for Common Tier).

Updated 2/20/18:

We haven't started selling the Aquas due to talk of their designs needing to be more unified. However, we'd like more opinions! So we've opened up a discord to any that are interested in giving advice or simply talking about ideas! Discord is still open for those that want to join!

Updated 5/2/18:

We have discussed unifying traits and have decided (thanks to Motherbeast) on a defining trait called the North Star! These special designs are commonly shown on an Aquas' chest, able to show people the insides of the Aquas, which are filled with contents relating to the wish that's created them! We are also updating the lore and trait sheet! Once those are set up, we can start of the Mer-May month with some Aquas for sale! Prices may alter depending on artists' decisions.

(Outdated Trait/Lore Sheet)

Former Design:
(Artist: ADSanika)

Updated Design: