Of course! I like to feel desirable. With all of the hype about what body I'm supposed to have it is nice to hear some appreciation for my body. It increases my sexual attraction and makes me more willing to try new things. I actually lost my sexual attraction to my friends with benefits because he was always criticizing and making offensive jokes.
I like when a guy compliments anything about me whether that be a physical feature, something about my personality, or mentality, etc. It's nice and I feel flattered. That being said, it's better for someone to not compliment me constantly because after a certain point, it would stop being genuine and it would just feel like he's saying it just to say it. So, if you want to compliment your girlfriend, just do it occasionally and that way, it will stay genuine.