Here is a short video that shows you how to make 4 photo reflectors with core board. Again, these are not giant sized but can work well if held close to your subjects. You may need an assistant for some of these or if possible, have the photo subject hold the light upwards to their face if not including their hands in the photograph.
Studio lighting and professional photo reflectors can be costly. Try some DIY versions as you learn. Just keep shooting. No subject? Use the self timer and use yourself as a model.
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