Hi, I’m Matt Sergej and looking to help you (multimedia practice for 22 years, doing animations/visualizations with HTML5/CSS3/SVG using custom javascript and/or GreenSock and D3.js libraries).
Can you provide more details or a private URL of your animation? What genre is it in? And what message do you want to get across e.g. what should stay in the mind of a viewer or cause his further action after watching?
This will drive the choice of background music and effects used. And yes, I'm more or less interested in web animations only (or created with say PowerPoint and screencasted to video etc).
Looking forward to your reply,
Matt