The first green one looks to be a chibska, the last two look like whitefriars, I know its a pain in the butt (pardon the pun) but you could always check
www.whitefriars.com and go through the catalogues it takes a pretty long time to browse the entire whitefirairs range, but could be to your advantage as im pretty sure the last two look like whitefriars. I'm pretty sure i've seen that jug shape before in there range...
I'm not an expert so please dont take my word as gospel, if I am wrong and anyone who knows what they are, please feel free to post a reply and berate me for my stupidity.

But we all know what makes an expert, X is an unknown quantity and a spurt is a drip under pressure.. Nuff Said!
P.S: I have no idea about the orange one, does it have a pontil mark, could be a modern piece... Orange isnt really my color.. yuk! Can I say if it was mine I would hurl it out the window on here?? I would, seriously, I hate bright Orange! Eughh! Repugnant color!! Sorry to all you people who collect bright orange, but hey, that's just not a bit of me, aubergine, yes, cranberry, yeap, Cobalt blue and Ruby red.. but bright vibrant orange... NAH! *SMASH*

LOL
If it was clear orange.. almost amber in color I would re-consider but that.... euygh.. Yuk.. not me!