I'm guessing you are in the UK? Labeling requirements are different, and I'm used to reading US labels, but it looks like a perfectly decent food on paper. If she likes it and is doing well on it (nice skin and coat, good poops, and plenty of energy), then I see no reason not to feed it. Fish oil is okay for adult dogs, but not something I'd recommend for a puppy. If she doesn't seem to be doing well on this food, try something else to see if it works better.