The camera lights are not the only thing that causes shadows. You must also use the correct technique, angles, settings, backgrounds, etc. I have found that you can avoid shadows by having the subject far away from your background and the lights positioned at an angle so it casts the shadows out of the frame seen in the picture.
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2 shadows are around it
Shadows are 2D because you cannot see the depth of a shadow.
Shadows
Some things would be using colors that are compatible with each other, balancing lights and darks, repetition of patterns and avoiding hard lines that divide parts of the artwork (such as a painting) thus 'cutting off' that part of the painting from the rest of it. etc.
Shadows