Ok Madison, just for you...
I can't do anything about the "flat" lighting in the posted pic. Even if I change the color, it's still going to have the same lighting (unless I did some serious dodging and burning). That said, I can plainly see a gradient of light and shadow on her right arm as well as half her face in shadow (but not enough to lose the detail in those shadows). To me, it's off-camera lighting, and directional...so we'll just chalk it up to taste. ;-)
However, I'll put two pictures in this post. One will be a slightly warmer version of the pic above. The other will be another shot from the same series, warmed to the same tone. Maybe you'll like the second one better--but maybe not, as it was lit very much the same way. :-)
[img]/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.00.21.08/_5F00_MG_5F00_4834_5F00_warm-small.jpg[/img]
[img]/cfs-file.ashx/__key/CommunityServer.Components.UserFiles/00.00.00.21.08/_5F00_MG_5F00_4831_5F00_2_5F00_warm-small.jpg[/img]