Dragonfly/Damselfly ID's (2 Viewers)

[BenjiS]

These were all seen over/near a small pond in Hemel Hempstead, Hertfordshire, England
I think 2 & 4 are the same species, but otherwise I have no idea what each is

TIA

 

[Swindon Addick]

For me: common darter, migrant hawker, common emerald damselfly, male & female migrant hawkers. The angles aren't ideal so I'm open to correction from anyone who's spotted something I've missed!