wow! haven't seen too many baby blankets made with Batik's... they are beautiful...
visit Quilter's Cache and browse the blocks- they offer hundreds of free blocks in many sizes- something may catch your eye & tickle your fancy. i would do a french braid with those fabrics- but i don't know about that being a 'baby quilt' looking quilt- unless you are thinking more of a (keepsake/heirloom) quilt that will be packed away & not used?
i look forward to seeing what you come up with- what ever it is will be beautiful!