Such a cool idea! I needed some time to understand what I was doing (at first I thought that I was to combine only the same colours to make loops...), but after that things got easier :) A very relaxing gameplay loop!
It would be awesome if the tutorial was implemented in the game itself, so you could understand what you are supposed to do right away while practicing :) I also got a bit confused at first as I thought you have to click on a yarn to start crocheting, not on the hook itself :D The cat was a sweet addition, though it didn't seem to be that much of an obstacle! And I would probably prefer to know the size of the blanket that is required while I am crocheting — but it is probably because I am not that good at it :)
A very nice game! It can get you hooked for a while :D