My animation about life in the trenches

We were learning about creating animations about things we are interested in.  I've been reading Bill Bryson's Book ' A Really Short History of Nearly Everything'.  He mentioned life in the trenches in the sea!  I loved learning about all the creatures that live there.
I found it easy to find a texture for my fish that I really liked.
I found it hard to create my own background, because I wanted to make it look real.
I really enjoyed using Talltweets to make a GIF.
Next time I need to put more effort into creating a background that actually looks like the trenches.