It looks like the main body is made up of 2DC-ch1-2DC clusters, each row making more clusters in the ch spaces of the last row. Maybe some of the shaping comes from having more DCs than that and reducing them (i.e. 4DC-ch1-4DC; work a few rows, then reduce to 3DC-ch1-3DC, then 2DC-ch1-2DC, etc.). Can't tell for sure, plus I just woke up! :P
Edit: looks like they may
have gradually changed hook sizes, too? Not sure.
Above the ribbon, it looks like SC's and maybe a few SC2tog for shaping. Top edging on the large bag looks like it might be reverse SC's/crab stitch.