Can I draw my restaurant the way it really looks?

Yes. Settings → Tables & QR ordering → Floor plan. Pick an area at the top, tap a table under Not on the plan yet to drop it in, then drag it to where it stands. With a table selected, use Wider, Narrower, Taller, Shorter and Make it round. Press Save the plan and your POS machines and waiter phones draw the same room within a minute.