Does lighting drastically change a picture?
I took 3 pics with an IPhone 5 and I got three separate results, which one truly shows what I look like?
1: Close to light 
2: Closest to light 
3: Not any close to a light 
Why is there a huge difference between the 3rd one and the first two?
They all will look like you but natural light makes the best selfies.
They all do look like you, of course, since the camera doesn't lie.
The third image has illuminated by light bouncing off the walls and ceiling which softens the light a lot. Notice the harsh shadows of the first two images are gone on the third image. If you want more pleasing light try taking your picture while standing next to a open window, especially if it's facing North. Or try being outside around sunset with you facing the light, with the light to your side and one with the light directly behind you. All will look different. Do this and you'll get a better-than-average selfie.
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