Au Contraire, bro. All my computers are Macs with iSight cameras, AND I'm a professional photographer, so I know a thing or two about what you'd look like in other kinds of lighting.
Yes, the monitor glow does grant a slight contrast advantage, but it's direct light (relative to the camera position), and much less likely to produce as flattering an effect as overhead or 3/4 key lighting.
Bottom line -even though it may not be immediately obvious to you- is that you have far better than average cuts. Certainly enough definition not to waste a lot of time worrying about gaining a few points. I've been in almost exactly the same position on three of my last bulking efforts; I get to a point where I start to feel a little soft, and I start sweating the calipers millimeter for millimeter. This is no way to make dramatic progress in the gym.
At your age, and with the impressive amount of progress you've made so far, I'd go ahead and get a little reckless with the calories. You have to keep in mind that bulking is all about neurological
and endocrine shock. You have to keep in mind that eating
itself produces an endocrine response. When paired with aggressive strength training, it's like a mass-gaining amplifier. That means you have to eat proportional to your lifting behavior in the gym.
I don't advocate the extreme bulking diets so many guys fall for, where they bloat up with a bunch of extra fat they'll just have to cut again later, but you look like you can handle a little wiggle-room. That is, if your metabolism is anything like mine.
Keep up the good work. And don't lose too much sleep over how cut you don't think you are