Omg, I love the back cover jumper's colour choices! Very early 80s. Baby on the front looks gorgeous in that raglan sleeve cardigan - almost like an Easter egg. Gorgeous easy knits, simple pimple.
These have been written in King Cole Cherished DK, but I think if you're not partial to doing the stripes yourself, they'd be a great base for something like the King Cole Bramble DK, which stripes itself!
You'll need 3.75mm and 4mm needles.