There's much I can offer you. The composition of what you're photographing is VERY difficult for any camera to capture without reflection. Half of the subject if VERY bright and half is dark. It's a normal reflection, which you may not be able to remove. If you want to get really good at taking such a difficult photo, you'd want to learn how to get into more complex settings on your camera in your iPhone and change the white balance. Otherwise, as a point and shoot subject, what you're taking a photo of is complex and will naturally produce the reflection you are seeing.