Hi there,
This is such a good idea! I will remember this when I have children ;)
Anyway, I would be able to do this for you right away, if you want. I can do it digitally, and then you would be able to get it printed straight away.
So I was thinking of maybe painting a galaxy or something similar for the background.. Maybe something that is relevant to your family, or the time of day/year your son was born. I can do several versions, if you like, and then you caan pick the one that suits you best.
Hope to hear back from you soon.
Thanks,
Mayenna