Hello Brendan,
In your warbler photos it seems that the first one is distinct from the last two. The last two shows a warbler having bright orange lower mandible with a small dark tip, and a relatively long body - I would go for Two-barred Greenish too. The bird in the first photo seems to have a daintier bill with larger dark tip to lower mandible, and rather thick wing-bar fitting Yellow-browed Warbler more.
Koel