A while back a did a bit of work on Fiverr. I got hold of some software that enables you to create animated videos really easily. I did a few gigs, and it was all rather easy because the software made it easy. The problem I had, though, was when people wanted something more specific. The software was liited in that it had a bunch of templates which could be somewhat customised, but not by much. So, I'd often have to turn down gigs.

Personally, I'm not much of a fan of doing freelance work where you have to be available all the time just in case a gig request comes in.