What sweetie pies!! They are all very adorable - Congrats on the new additions. No doubt they will be the first 4 of many more to come. We started with 5. This year we are adding 15 more. Just a warning that chicks are not only addictive, but on this forum we are all enablers-of-the-chicken-kind and will not stop you from adding to your flock!!
You might want to build a bigger coop than will fit your 4. It will save you in the long run when you want to add more.
I've been thinking along those lines myself...I have to bring my Beloved along slowly with these ideas, although he's already decided we need to get 2 Silkies yet. I have the perfect man!