Very nice looking site. I'm confused about the first selection, "what do you need", veterinarian or veterinarian student. When I select the student I can't select a specialty. For me that is a bit confusing. I'm probably missing something here because I don't know much about the industry, but I would lose the first box "what do you need" and just have the second one. In the search results you could point out who is a vet and who is a student vet.
When I scroll down and see "10 tips on finding the right vet", next to the subscription box, it is not a clickable link.
Last thing, the girl in the picture just looks too young for me. I would go with the same sort of picture but have the vet being older.
Please don't take anything I have mentioned in a bad way. I think you have done a great job.