Sue s q, the roses are from Piece By Number, called Rosie's Rose. I've bought a lot of their PP patterns, they are very affordable.
Teen, your Y seams look pretty good. I've also seen a lot of different methods out there, and think many of them make it way more work than it needs to be (same with bindings).
For a few of the blocks, I didn't feel like Y seams so cut triangles and put a seam up the middle instead.