I have designed two badges for Steem-plus before.
The five ranks are "Plankton, Minnow, Dolphin, Orca, Whale".
Here is the third one Dolphin badge.
First, draw the outline of the Dolphin.
Fill in the color.
Delete the outline
Add details to the round badge to make it perspective.
Add shadow to make glass looking.
Make it more like a badge.
Add three stars on the bottom so people will know it's the third grade.
Let's see the process on GIF
Here is the link you can download for Steem-plus.
I will share other badge designs later.
Posted on Utopian.io - Rewarding Open Source Contributors