Absolutely use your personal image. People want to know they're dealing with a real person, you can always use your logo on business cards and other materials. One thing to remember, use an image you can be proud to display. This means wear business-appropriate attire, choose a recent photo and keep the glam photos for your significant other. It's always best to use a photo taken by someone other than you (no selfies), and it doesn't have to be taken by a professional photographer, although if you can manage it, professional photos always look best. Be authentic, you want your clients/customers to trust you.