Lastly, if I may:
Forgive me if I am mistaken, but it seems that this piece was completed by leaving the negative space of the seahorse shape unpainted, allowing the white of the canvas to provide the the white fill of the seahorse shape. Simply for the reason that this piece is intended to be hung in a bathroom- a place which can, of course, become rather warm and humid- I might suggest that a thin protective transparent layer of water-resistant finish be gently sprayed over the finished painting. I suggest this only because I would hate for anyone to end up with water spots (especially if a piece like this does end up in a children’s bathroom) or- dare I say it?- mildew staining, on the unpainted white canvas seahorse (which was so carefully outlined in that lovely shade of paint!), lest the blank portion of the white canvas become discolored. Perhaps I am just being a bit silly, and maybe a protective topcoat really wouldn’t be necessary- I just mention it in case it may be a helpful idea for someone.
Great idea for simple-to-make artwork that looks classy.

Thank you, Traci! 🙂

Thanks so much, Kari! It does give a nice pop of color in there!