If my puppy too skinny?

Hello everyone,

Im posting as my family are telling me my puppy is too skinny.

We feed her approx 300g of butchers dry kibble and 1 butchers puppy patty a day. Shenalsonhas a side bowl of kibble we keep topped up in case she gets hungry.

she is a full working cocker and is 9 months old.

Any feedback is welcome