Set right white balance

Something that I didn't pay attention was white balance. I used to use auto. But if you see some photos that are too yellowish or too blueish indoor usually is because of this. The best way to avoid this is to shoot at RAW format and after to choose the right one at photoshop. But because of the HUGE size of raw format images maybe you choose one of preset of your camera and use jpef format. Have in mind that regular indoor lighting needs Incandescent or regular office lighting needs Fluorescent.
You can see the same photo with auto selection and using tungsten preset of photoshop.