Not all Water Spirits look much alike.
This is something you've known for as long as you've lived, the springs that would always ask you what kind of new things you'd been learning much larger than the little spirits that would come out during the rain and splash around in the puddles with you. In turn, they are much different from the boisterous river spirits, who leap out of the waves and scare fish away from people's nets.
So you have options. And, after a moment of thought, you decide to draw the kind of spirit that you're most familiar with, the calm ones that live alongside Fire Spirits and absolutely hate the idea of being clogged with ricebird feathers.
And, decision made, you get to work.
Just about all Water Spirits have fishtails. They use them to stir up waves and, when pulled into corporeality, to slap anyone they find offensive. You've never actually seen the last part in action, never created the opportunity, but that's what they tell you it's for, and you don't have much reason to disbelieve them.
Fins are another common feature. The spring spirits have larger, smoother fins than the other kinds that don't have legs instead, being basically webbed feet without the feet. These fins are more transparent than the rest of them, and you'd likely be able to see through them even if you dragged the spirit they're attached to into corporeality.
You add a few ridges to the fins on your drawing, and make them a bit thinner. It might not be particularly accurate to any one kind of Water Spirit, but you're supposed to make one that looks about average, and most spirits have ridged fins. To anyone who would know it's not completely accurate, you're sure it'd just look like a stylistic choice.
The heads, though... the heads of Water Spirits tend to resemble some kind of small, cute land animal for some reason. You decide on a vaguely canine appearance for this one even if its face ends up being much rounder than a vox's would be, and the ears are pointy, instead of just flopping over.
And as for the color... Water Spirits have fur that can be blue, green, or purple. Yes, they have fur, and not scales. You've had to explain this to far too many people over the years to not make this fact obvious in your drawing. It helps that the spirits in the hot springs have thicker fur than the other kinds.
You aren't sure how long you've been working- you aren't particularly good at drawing, and you need to make sure you get this right, when you're pretty sure Raspberry is going to be using this as a reference for as long as she possibly can- but it's clearly been some time, since Caramel's finished before you do.
Curious, you look at his piece of paper. Sound Spirits, it turns out, look like warmly-colored musical notes with chubby birdlike faces. It looks about right to you, if a bit simplified, but you'll leave judgement to people who can actually see that type of spirit.
Raspberry seems happy with you. "Thank you! Hold on a moment, Rye, I've got something I can pay you back with." She rustles through her desk for a moment, before pulling out a coin that shines almost blue. "It's an aqua coin! I was collecting coins for my last project, but I don't need them anymore, so..." So this is what Crescent silver looks like.
[ ] Take the aqua coin.
[ ] Don't take the aqua coin.