This is a shot from a practical talk I did at my local camera club about using off-camera flash.
The background was a standard beige panel that was just lying around, and I fired an orange gelled flash at it. Wilfie was lit by a single flash through an umbrella, camera left.
When you chop off the top of someone's head, be bold, don't just chop off the the very tip otherwise it looks like you've done it by accident!
1/250th sec, f5.6, ISO 200, Focal length 50mm