What camera you got? My 100mm macro actually works great for portraits too!
I upload all my photos through Tapatalk app, it optimises them perfectly. Before that I remove all metadata with the app Metapho, really easy to use if your erring on the side of caution. You will always lose a considerable amount of res with the file size limit for upload. But do some crops if there’s details you wanna show. I can say for myself, never enough photos for my eyes to be ogling at!