I found the patterns for these two sweaters online.
The long sleeved white one can be found here.
The pink one can be found here.
I followed the patterns pretty much to the letter, except that for both I used one size larger hook. Both said they were newborn size and I wanted them to be a little bigger than that. They both turned out closer to a 3-6 month size.
Both patterns were easy to follow and both websites offer a lot more patterns for other clothing items.