I have a wide cleavage after 1 year of breast augmentation. Should I get a revision?

I had demi 300cc Motiva ergonomix, under muscles in December 8th, 2023. I’m 30 years old Asian, no kids. My height is 5’2’’, weight is 105 lbs. Overall my breast look good but I’m unhappy about my wide cleavage and size. Also my breast implants feel kinda hard because I don’t have breast tissue. I’m thinking about a second breast augmentation with 400cc Mentor Xtra, Moderate High Profile. Will bigger implants close the gap between my breasts? Thank you for answering my question.