Milk too yellow?

I'm 5 months pp and exclusively breastfeeding, i just started pumping because I had to come back to work. In our nursing room we have a fridge and I saw other girls milk which looks whiter than mine and with less fatty milk. Mine looks almost all yellow like it was mostly fat. Is that ok? Also not sure if matters but she has a girl and I have a 5 mo boy. Maybe boys need more fat? Is it my diet?