I adapted this pattern for this little sweater found here I missed out the cords on the front because I wanted to make it for a boy. I then decorated it with a appliqué crochet giraffe
The sweater took me about 4 days to do and I made it in Dk wool and used a 4.50mm hook. I think probably it will fit a 6 year old. The only problem I had with this pattern was crocheting in the front of the loop It took longer because I kept picking up two by mistake. I was pleased at how it turned out and I will probably use this pattern again.