Ooooh! She's PRETTY!
I have 2 Rhode Island Reds and 2 black hens the breed of which I have no idea. My blacks are smaller and a bit more active, and don't lay as consistently as my reds do.
I would get your chicks maybe in mid- to late-March. Be prepared to keep them inside under a heat lamp 24/7 for the first month or two until they get their feathers all in. We used an old aquarium for the first three or four weeks. After that, an old cardboard box would probably work o.k.
Janet could probably tell you a lot more since she and Tony had birds for a very long time
I'm still a rookie by their standards -- have only had birds for about two years.