Serving Images uploaded to S3 via CloudFront

I am uploading images via CarrierWave in my Rails 4 app, to an AWS S3 Bucket. I also have Cloudfront setup, which currently serves up all of my statis assets (Excl. Public uploads).

How do I serve uploaded images via Cloudfront instead of S3, even though they are stored in an S3 Bucket? I have found tutorials like this, but since I already have a CloudFront distribution running, I was wondering if I should add another one for my Public Image uploads or is there a way to add it to my Current distribution.