I’m delighted to say that you can now edit multiple images sequentially via photos.google.com.
Just open up an image, click the pencil icon, make your edits, and then use left/right arrow keys to move among images. (Previously you had to keep hitting Save, exiting the editor, navigating, and re-entering the editor.) This is a much, much faster way to move among images, apply Auto Enhance, and make other tweaks. You can also now choose among new aspect ratios when cropping.
More refinements are on the way, so check it out and let us know what you think!