#1 & #2 with Plan Apo10x/0.45 polarized light, flash.
#3 with Plan Apo 20x/0.75 DIC, flash.

Bursaria by Rogelio Moreno G., on Flickr

Bursaria by Rogelio Moreno G., on Flickr
Mouth region:

Bursaria - Mouth region by Rogelio Moreno G., on Flickr
Rogelio