We're currently living in an era of the voiceover business where just a commercial demo is no longer enough. If your agent or client wants to book you for an eLearning narration gig, they'll want to hear samples of your narration reads. These samples need to be on a professional eLearning narration demo. The content isn't quite as exciting as the content on a commercial demo, but no less critical. The eLearning market has exploded with opportunity.
If you're interested in doing animated characters, your goal should be working towards a character demo. You never want to put a bunch of character reads on a commercial demo. Niche-based demos are becoming the norm and the more you have, the more target markets you can cover.