Hunter only allowed 10 images, so I did 10 works no details. At the interview they asked for 5 print outs, so I included one detail then. With that said, my work is very detail oriented, surface is incredibly important especially since I'm interested in material development, so it was tough. For my other portfolios that allowed 20 images, I included 3 details each showing a different material finish. I'd say maybe 1 or 2 details or none. I think it also depends on your medium(s), I'm a sculptor for reference, but ultimately what is that detail conveying that makes it more important than an entire work?