Yes it is piece 4, no you haven't missed 2 & 3... I am just sewing the pieces in an order that suits the current warm autumn weather we are having. My second piece is a boiled wool coat and it is too warm to be handling wool. In fact my top was intended to be a merino jersey top but I decided a 3/4 sleeve top in rayon would actually got worn more quickly.
I used New Look 6150 again. I previously made it here. Sadly the last top is much loved but the fabric is pilling and deteriorating at a fast rate. When I made the blue version, I did actually buy some rayon knit for a second version, so decided that now was the time to make it up.
This pattern fits me well with no alteration. I chose my size based on my bust size +1" ease and chose the size that corresponded with that as marked on the front bodice pattern pieces. The pleats and gathers are a bit fiddly but the rayon takes pressing well and the fiddle is well worth the effort of the finished top.
I really need to make more of this pattern and will try the boat neck (View D) next time.
I have written a review so all the details of the making of the top is in the review - here.
Ciao kittens ... pants next (piece 3)... holding my breath to see if I can make the deadline of all 4 pieces but still holding onto some hope...