Recently I've been wanting to improve the lighting of my photos.
I'm using natural light from two windows(which the background is up against)with exposure compensation settings on my camera so the photos aren't too dark. The problem I'm having with this is that the photos seem too inconsistent in terms of lighting. So what should I use as a better light source? I know that it would be good to use fluorescent bulbs but thats pretty much where my knowledge of it stops. Also, I'm not looking to buy anything very expensive so methods that are cost effective would be appreciated. Just as an example here are 3 photos of mine which are all slightly different in color.
Thank you for any help