Thanks for sharing what you do. I'll downsize my photos and start posting a few.
I recently saw a how-to post by @mrlightning that suggested uploading a full resolution post and then linking the photo to that. So when a person clicks on a photo, it would bring up the high resolution version. Here's the post: https://steemit.com/photography/@mrlightning/howto-linked-images-showing-off-full-photo-quality-using-steemimg