These remind me of mandalas. We could get stones and do mandala zendoodle art on them, and then write a simple encouraging message on the back for baby girl. Make a nice fabric bag for her to keep them in.
nodes connected by black lines, could leave it is it is for simplicity, incorporating it into a sleeve portion; alternatively have it as a sleeve/calf with the spaces coloured very brightly. This reminds me of constellations.