Your diaper looks great!
Absorbancy really depends on your fabric, what did you use? Most often recommended is 3-4 layers of hemp or cotton fleece, 2 layers of sherpa, or 6 layers of flannel/birdseye I think.
Diapering a newborn is different anyway. Most breastfed newborns poo with every feeding, so you are changing every two hours or so. They do pee alot, but their hineys are so tiny you can only wrap so much fluff around them. Bulk quickly becomes an issue.
If absorbancy is really your main concern, maybe make some doublers to use if you find your diapers aren't absorbant enough. I bet what you have will be fine.