Nice build with drawers. I like the use of plywood for the frame over other builds (2x4s for example). A few things I might do differently, one, I would build 2 twin frames to attach together (easier to move and I would rather go with a king). Add drawers to both sides. And maybe something for feet on the bottom for hardwood based floors.
http://wilkerdos.com/2015/08/diy-queen-bed-frame-with-drawer-storage/