There was a recruitment drive by Aquaman for his new assembly of heroes. Krabby wasn't selected. He believed that it has something to do with his shell colour. Prejudice always exists even in Atlantis.
He tried to remain positive...but you can see the sadness in his eyes. He always wanted to save the world from invading octopus and evil jellyfishes. But they always tell him he is too small and he doesn't have what it takes. Dammit...size doesn't matter. Antman made it into Marvel didn't he?
Well, screw all that! Who say you can only be a hero if Aquaman chooses you?
Animating Guide
First you create a rough sketch. Idealise your work. Its easier to think when you have it in visual art. This is what we call a story board.
Start with the sky when you want to start colouring your world. Build your horizon.
Then you move to the basic colours in the foreground and the background. Get the basic shapes up.
Detail the strokes for each object drawn.
Start with basic colours.
Work your way by building up the colours from the basic coloirs.
Go for medium detailing. You add temperature to your colours and on each object for sharper image and perfect shadowing.
Start detailing every object. Tune the colour contrast to differentiate the distance of the object.
You can always add character and humanise it by giving it a voice.
Krabby won't take this without a fight. He will take matters into his own pincers. First thing is a superhero name and a symbol...
(Me on the right. Because I am usually right)