I Had a Large Silicone Chin Implant Placed 4 Weeks Ago and I'm Unsure if It's Too Small? (photo)

I'm wondering whether it might have been better for the my surgeon to use an extra large implant. Post surgery he told me had tried a medium and it didn't make a big difference, so he settled on a large. He didn't try the extra large but he assured me that i would look like Desperate Dan. My understanding would be that the tip of the chin should be inline with the lower lip, and mine isn't. Anyway here's a photo or two. I realise it's not life or death but i's important to me. Thank you :-)