Keep it simple. Let your cardistry be the star of the show, not the after-thought. Set up whatever camera you have, get some good lighting, and just do what you do in front of it. Cut it the way you want it, color it a little if you want, and put some cool music behind it. Don't worry too much about the cool, complicated things, mainly because you're a beginner, and when you try to do too much, it winds up looking like crap. (Talking from experience

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Just keep it simple and if your cardistry is good, it'll look good.