Why & how did you arrive at the decision to use Cloudinary to host images for your Savory website instead of locally hosting them yourself?
Have you looked at your Cloudinary analytics dashboard to quantify what magnitude of bandwidth you're dealing with?
Are you currently on Cloudinary's free tier plan or paid? Since you mentioned the Github image hack, are you looking for a zero cost hosting of images?
The more datapoints and constraints you provide as background, the better the advice in your replies will be.