I promised an update and here it is :)
I hired a pro model mostly to shoot some concepts I thought of but more than that, to get some experience about how it feels to shoot with a pro.
The model arrived on time, wearing what I requested, with minimal make-up and simple hair as I asked her. I had a pro makeup artist with me for the shooting's requirements.
I had 4-5 concepts in mind and on paper (it really helps a lot to write them down, I found that by reading at this article
). I wanted to shoot some couple shots but the other half (a male model) wasn't available for the time, so I focused on my other concepts.
The shooting took about 2 hours to complete (including the make-up touch-ups) and I ended up with about 250 photos which I think are all near-perfect regarding the model's poses.
That was actually my experiment's question: How many good shots can a pro model give compared to an amateur one?
My answer for that is about 2 out of the 3 shots are great!
So if you are wondering if you should hire a pro to do some shooting, give it a try! It really feels good when shooting with a professional model :)