There must be tons of pictures out on the web. First go to www.google.com and enter F-18 or FA-18 Hornet, etc. into the search box.
Also go to www.airliners.net and again enter FA-18 into the search box. That site usually has high definition photos of various aircraft. Another idea would be to purchase a scale non-flying plastic model of the FA-18 from a quality manufacturer such as Revell. That would give you some detail. Have fun in your search.