Well your link to the ref didn’t work but I think you did good with this piece.
The main crit I can offer is that the woman’s head seems chopped at the top. The hood seems to end about an inch or so above and ahead of her eyebrows but then the slope of the hood as it covers the cranium is to sharp based on the shading. I wish I could see the reference to provide a better crit.
Also some details are missing like the end of the baby and the beginning of the woman. It seems like they are one in the piece, maybe you intended this though.
In general I think you could’ve pushed the woman’s face more but the baby is very well done.
Otherwise the piece is outstanding. Colors textures and the background scheme is nice.