Great Fairy's Fountain

My OC Thetis. She's a fairy mermaid, and since I wanted to get back to training some watercolor effects (like underwater reflection) and I haven't drawn any of my OC's in forever, I thought it would be a good opportunity to do so.
I hope you like it, and thanks for looking!
If you have any questions, please feel free to ask.

Time: 8 hours
Tools:
0,4 Pentel mechanical pencil;
0,1 sepia and Black Copic multiliner;
Faber-Castell Polychromos pencils;
Ecoline watercolors;
Posca poster marker;
Sakura pastels;
Acrilex Matte Varnish for finishing.
Painted on B5 sized Winsor&Newton watercolor paper, 300g/m².

More of my art with Thetis: