ไปตั้งค่า White Balance ครับ เป็น Fluorescent ครับ
อ้างถึง:
Tips to improve the yellow color tint: Thanks to Elemental_Fire for the tip! you can get much more natural colors while using the flash by choosing Fluorescent for white balance.
Remember this white balance tip is only good during flash, if you keep it at fluorescent it might ruin your daylight shots.
Like any other photo you can also improve it by using the auto enhance feature in the gallery effects menu.