I modeled this sculpture thinking about my mother and my brother. This could also represents you family and I think it's gonna be a wonderful gift for you, or for your mother. You can print and paint this sculpture as you desire.
The model is also sliced, so you have more liberty on printing. Feel free to contact me if the model presents some problem.
Size: Original size (full-model-mother-children.stl): 64x40x60mm
Layer Height: It can be printed with 0.2 layer height (the same at the pictures)
Supports: required (You'll use more if you try to print the full model at once. Try printing using the sliced parts).
Infill: I recommend using, at least, 10% for a stronger structure.
Printing time: It will vary according to your settings. But, I can guarantee that the long time printing time will be worth it. With my setting, I printed all the sliced parts using about 15 hours (at 60mm/s and 0.2 layer height)