I am looking at this thread with great interest. After all, we would like to show our Orchids here in their best light.
For me, showing the whole plant, spikes and the blooms at different angles is very important. Photographing the whole flower front on and then cut-outs to show details is helpful. Pics of buds are great too.
I like to see the ratio of plant to blooms and other typical characteristics. And if the plant has a blemish somewhere it's ok too in my eyes, since it is a form of documentation.
Now if it is eye candy, well - I am certainly not complaining either.
A full arm of a blooming Cattleya or Cymbidium bowls me over every time, ditto for a cute little botanical ( and everything else in-between.....)