Step one:
First draw a whirlpool shape as the shape of the conch.
Step 2:
Then draw double-line stripes or other stripes inside.
Step 3:
Then paint pointed decorations on the outside, or you can change it to other decorations.
Step 4:
There are curved decorative lines painted inside. You can use your imagination when it comes to decoration.
Step 5:
Finally, apply beautiful colors and the conch is ready.