Your doing well these guys !!! Exposure looks good and image is sharp Would have increased the ISO to 400 for picking up one extra shutter speed (did fine as presented) I like the shadow detail, difficult here, might just try opening the arm area just a tad !!
Tail is missing (cut) but probably the best option to having all that room down there !! Excellent !!! ... btw would hate to be around if they can scream louder than the howling monkeys !!! :)
The noise they make is ungodly, start around 4 am and as a group it's awesome. We also noticed whenever a vehicle passes they howl at it; most amusing.
When I get back with them I will be armed with lots of information from this site and will do a much better job :)
Richard,
I agree that going better is always a good idea. Our knowledge of animal behaviour also increases. I would prefer more space. Don't shy away from higher ISOs if required.