Keep all camera movements down to a minimum. If you’re creating a production for the web, constant panning or zooming does not translate well. It is better to tell your story using a series of set shots, instead of multiple zooming and panning. If you are panning, keep the motion slow. Panning too fast can induce nausea in the viewers. In addition, bouncing motions distract the audience and can induce nausea.
Consider your scene elements. If your background is simple, your subject will stand out, but if the background is too busy, the subject will tend to blend in.
Be careful when using MPEG compression. Like the JPEG format, using high settings can introduce artifacts into your animations.