On the two large pieces of fabric, press the half-inch seam allowance on all sides to the back of the work.
On the smaller pieces, the raw edges won't be sandwiched in the work like those on the large pieces, you may want to zig-zag around all the edges before pressing those seam allowances (one inch all around) to the back side as well. And on the long side that will be the top of the pockets, press the seam allowance in half after pressing the one-inch allowance, so that you can make a nice finished edge at the top.
The picture shows how the pieces will stack up to be sewn: the piece that will be the outside is face down on the table, the inside piece is face up, with the taller pockets and then the smaller pockets facing up on top of that.

