Rating (star) assignment with one click
It would be great if you could assign a star rating to a photo with one click on the star under the image. Right now if you click on a star for a photo not already selected, it highlights (making you think you are assigning a rating), but doesn't stick. You must make sure the photo is selected first before clicking on the rating.
I would suggest either not highlighting the stars when you hover or click on an unselected photo (this is confusing), or allow you to implicitly select a photo when you click on a star.
I agree both things you noticed should be changed, but much better would be if they reverted labels to old ones: