Hi!,
Nice girls. Pretty nice breast development in them. If you're going to breed them, pick a male without much black in his hackle. The girls have a bit too much. The chicks should be more correct. Light Sussex is a color balancing breed. Always something you can do each generation to make the color balance a bit more correct, smile.
If you want to lose the cushion of feathers on their back, select for the hens who lay the most eggs for several generations. You'll find they will be more close-feathered as you proceed and the cushions should subside and ,hopefully, disappear. If you can add 25 eggs a year to your gross total per season per hen, you should see that lovely close-feathering for which the breed is noted.
Close-feathering is desired in Sussex because it is associated with a higher rate of lay . Plus it shows off the form of the breed type better. Loose-feathering like you see here is associated with the hens ability to lay down a layer of fat under the skin. Fat isn't elastic. The hens skin needs to stretch a bit when the reproductive organs swell at laying time. When there is that layer of fat under the skin, the skin can't stretch like it should and the hen doesn't have the internal capacity to allow for making as much eggs as she should. So the rate of layer can be lower.
Fine textured skin is elastic. The texture of the skin on the shanks, comb, and wattles is indicative of the texture of the skin on the rest of the body. That's why the Standard says the skin on the comb, wattles, and shanks should be fine and smooth. These are all points of the Standard if you decide to breed your birds. They are also guidelines for a better rate of lay in your egg flock.
There is no such thing as the perfect Bird. Yours are nice looking girls. They have a nice silhouette and their chassis set well upon their legs. Balance is important in a Sussex. It is so closely aligned with their productive capabilities that, literally, if it doesn't
look like a Sussex, it's not a Sussex. Your girls
look like Sussex. All the other points of order can be adjusted if you decide to breed them, or not, depending on your needs and wants.
Pretty Salt and Pepper

Best Regards,
Karen in western PA, USA