Color Correction

This week I worked on using flash in bad lighting environment's. To do this, I went to local bike shop Cycle Extreme and took pictures of bike mechanic Benjamin Moore at work. The lights were fluorescent and gave off a light-orange or peach colored tint. In order to make the image's colors look normal, I used a light orange gel (Roscosun 1/2 CTO) over the flash and changed my camera's white balance settings to fluorescent. Here's the resulting image:

Here's the lighting diagram of how I made it: