Hello, Client.
I have read your project requirement. i think i am fit on this project.
i am computer vision expert and full experience on mobile app developement about 7+ years.
I am especially good at facial processing including face recognition, age/gender estimation, face landmard detect and tracking, object detect and tracking. also good experiene on various face filter.
i have ever done face swap app, snapchat and snow like facefilter, makeup app, various facefilter app like facelife.
if you want i can share you my result that i have done.
please check my profile, i can give you perfect result as you want.
hope to working with you. thanks.