The first one is a Trigonostigma hengeli, possibly a female. It's certainly the biggest fish in my tank.
Second one is boraras brigittae
Third one is boraras merah
The latter two are difficult to tell apart and very often mislabled in the trade. Fortunately for me these two species get along very well and even school together.
The shrimp.... I'm still trying to identify those. It''s likely a wild variety of the well known RCS. Got half a dozen of these a few years ago and it's now a thriving population that comes in light, dark green and dark brown, some are now developing stripes.