Product photo is a challenge. Finding the right background, and setting the correct light as well. I am not at all an expert, but I am hopefully getting better at it.

I was on a cabin-trip this summer down south, near the ocean – and there I found this beauty on the beach. I just had to take it home with me of course.
Notice how much better the earrings looked when I used this as background. These are the same, just with different light and background. The right one is taken outside in natural light on a cloudy day. Need to keep that strong sun away from your photo.
