Is there a way to minimize spacing between the center of the chest for a more natural result? (photos)

Thanks for your question! The best chance at minimizing the space between the breasts is going with a wider implant. A moderate or low plus profile might be an option for you; however, understand that your body has some physical limitations with cleavage. Good luck!

From your photos the moderate plus implants are a good choice. They have a bit wider of a base compared to high profile implants so that should give you the impression of more cleavage. I encourage you to speak to your surgeon about your goals for surgery.