Beautiful heart log cabin ...don't know if you have ever done any free motion quilting or not, but, if you have then I would do this: straight stitch with a walking foot in the ditch across and down each row...then free motion a heart inside each block.
Whatever you do it will be lovely, is this pattern from a book or just a pattern that you purchased? I would like to give it a try myself.
Happy quilting,
Lil Red :)