Here's the process of creating a sleeping and simultaneously fantastic and unique rubber duck, translated into English:

Draw the basic shape of the rubber duck. This includes a small round body, a large head, and a cute beak.
To depict the rubber duck in a sleeping state, draw the eyes as if they are closed. You can express the eyelids with a line.
Color the body of the rubber duck yellow. Particularly, using a gold yellow color to emphasize uniqueness can give a more distinctive impression.
Draw the beak of the rubber duck in orange. Add a white highlight to the upper part of the beak to depict light reflection.
Draw wave patterns on the body of the rubber duck to give the impression that it's floating on water. Also, create a fantastic atmosphere by drawing a rainbow with vibrant colors in the background.
Finally, if you draw twinkling stars around the rubber duck, it will give a more fantastic impression.
This completes the process of creating a sleeping and simultaneously fantasti