It is pretty hard to judge your chin implant results based on these partial pictures but it clearly is asymmetric. The terms you are using suggest that these are Medpor implants rather than silicone. Know that every single chin implant of any material can be modified during surgery to change its shape and dimensions to be customized to any patient's needs. Not that you know what does look good on your face, this information should be helpful in making a new and better selection. I would first start by having some computer imaging done to see what changes would work best with your face.