Which one do you prefer?

We will be using some "lips" in some new branding for a client. Option 1 is my client's real lips! Option 2 is a stock image. Which one do you prefer?

We will be integrating some "lips" into branding. Option 1 is my client's real lips! Option 2 is a staock photo. Which one do you like better? Feel free to comment with your reasoning.