When we redid a little room off of the family room my husband suggested both recessed cans in the ceiling above each table and also tracts that point onto the design wall and the bookcases of fabric. It works great. the overlap of the two takes away any shadows.
My opinion:you can't have too much light.
Oh,I also have a full-spectrum "gooseneck" style lamp that I can bring right down to the work on the cutting table and at the sewing machine that I bought at a local art supply store.
sounds like you're going to have some fun getting a new studio :-D