Zooming in and getting up close creates a heavy dosage of scrutiny within photography. It's pretty easy to tell when you mess up detail shots. I'm by no means a seasoned veteran at shooting this genre of photography but all I can say is that it requires time and an extreme attention to detail. It's important to make sure that clients are willing to commit to a budget and timeframe that allows for great pictures. This style of photography requires time and patience, and the client needs to know that.