I first stitched on the layer that is 'skin tight' which included his shoes, trousers, shirt and jacket sleeves (see below):
I'm not sure what it's called, but I used a stiff iron on material ironed onto a large panel of the tights material I was using for his jacket, placed at carefully measured points. I then cut slits at the top of the jacket and tail piece meaning I could cover the backs of these sections but leaving them connected to the middle piece. I then cut neatly round these shapes and stitched around them in a grey thread with keeps the seam together but is also a part of the aesthetic design. I then measured the middle section to just fit around his waist and, hey presto we have a jacket! A few buttons and bits of book pages later it is ready to be stitched onto the puppets body.