2. Probably make the cuffs slightly smaller too.
3. I feel the shoulders were a little big, so I think for the top half of the blouse I need to cut it a size smaller (especially when using a fabric with a slight stretch)
See the blue trim that runs around the inside of the collar and down the inside front - I have seen some shirts, that pick up the colour in the trim on just one button at the top of the shirt ---hmmm nice idea. the trim has two rows of white running stitch going through it - but doesn't show up too well in these photos.