I used 5mm hook for the booties so that they are bigger than the pattern called for.
Also I decided to leave the strap as I was making the first slipper as I thought the tear drop opening looks so cute. Then I added on a little green and white flower. When I got to the second slipper, silly me, then realised that I would have to work out how to make the tear drop opening in mirror image to the first slipper... After some trials and errors, I worked it out, as symmetrical as I could. I think I have to make another pair and write down what I do!