Before you tell me "Google is your friend," let me say I've tried Google, and it hasn't helped. I need tips and tricks for doing efficient searches of Shutterstock and other online image banks to find the (royalty free) photo(s) I need to assemble my book cover. Primarily, I'm looking for a full-face view of a young woman, white, with brown eyes, late twenties, nice-looking but not glamourous, with natural makeup. I want her eyes to be open, intelligent, and alert; maybe a little wary, but not to the point of alarm or fear. The lips can be parted or closed, but I don't want a smile. I keep trying search terms in various orders, but I keep coming up with irrelevant results. In fact, the moment I put in "alert" I get nearly all animals (dogs, especially), and the humans I get aren't alert at all. What am I doing wrong? How can I do it right? Thanks.