One unexpected issue was that taking the camera kit out of an air conditioned apartment into 34 degree heat and 80% humidity the lenses steamed up instantly and took a good hour to acclimatise and produce useable shots. Something to bear in mind for the future and I'm also looking into a "dry cupboard" for the camera kit when when move into our own condo at the end of the month.
Anyway - this is a small subset of some of the beasts we saw in our first trip into the jungle.

Crab Eating Macaque by cedarsphoto, on Flickr

Thumb Sucking Macaque by cedarsphoto, on Flickr
Given sufficient time I'd try cloning out the vertical branch but it was rather late when I got round to processing the photos

Greater Racket-Tailed Drongo by cedarsphoto, on Flickr
For the latter, I was unsure about the inclusion of so much negative space on the left side of the frame but with the angle of the bird's head I wondered if giving it space to look into helped? The tree on the right was deliberately cropped to "stop" the frame on that side. It's also been cropped already and if I cropped too tightly on the bird then I think the resulting image quality would be lower. No clear "correct" solution with this one given the distance the bird was from me.
And finally, a kingfisher taken at the edge of useability of my 150-600, then cropped as much as I dare. I was thrilled to see a kingfisher, I'd never seen one in person before and had spent many days out in the UK looking so to see one on the first day we go exploring was a good sign.

Kingfisher by cedarsphoto, on Flickr
None of these are intended to be competition/exhibition level shots but any critique is still welcomed. exif wise they were all taken on my 6D using the 150-600 lens @ f8, iso set to auto (typically 6000-8000) on aperture priority.
