This is my little set I came up with...Hope it fits!

Below is my inspiration by kawaiiblythe.wordpress.com - Isn't it beautiful??

Photo credit: kawaiiblythe.wordpress.com
MATERIALS

- Written Free Pattern by kawaiiblythe.wordpress.com - Here
I added three butterfly buttons on the cardigan, added a matching pink ribbon weaved through the second row of double crochet and shell edging. For the sleeves, I added one row of double crochets and shell edging.

HAT - I adapted this pattern for sizing and shape by Crochet Geek

Photo credit: Crochet Geek
- Video Tutorial - Here- Written Free Pattern - Here
I added a row of double crochet (for the ribbon) and shell stitch to match the cardigan, and omitted the pom-pom.
BOOTIES - I adapted this pattern for sizing and shape by damnitjanetletscrochet.blogspot.ca - They are so adorable!
Photo credit: Damnitjanetletscrochet.blogspot.mx
- Written Free Pattern - Here
I added butterfly buttons to match the cardigan, and shell stitch edging.
SKIRT WITH REMOVABLE DIAPER COVER -
Skirt - I adapted this pattern for the waist and band by Yolanda Soto Lopez
Photo credit: Yolanda Soto Lopez

- Video Tutorial - Here
I didn't want the skirt to be too lacy like the cardigan, so I added 30 puff stitches evenly around - every two puff stitch spaces, then added a row of double crochet for the ribbon and shell stitch edging to finish the skirt. It's measures about 10" high x 11" wide.
Diaper cover - I adapted the pattern by The Bradens - Pattern Here
I followed the waist band from the pant pattern, used the above pattern for the shape and size and finished the diaper cover with the shell stitch edging to match the rest of the set. In addition, I added three small matching buttons at the the back of the skirt band where it's visible and snaps all around the band to secure. So the front flap snaps inside the band of the skirt from the inside, and the band of the diaper cover snaps to the band of the skirt. It makes a double waist, but I like the look it creates.
- Written Free pattern - Here
More tutorials worth the look:
- Puff Stitch - Here
- Double Crochet - Here
- Small Button Hole - Here