Picture posting is enabled for all :)
Thanks for all your help. The bin does have a lid. I poured a bucket of comfrey liquid in at the weekend so that might help. I've recently got a mower with a collecting box (I don't have much grass so had a hover before) so should get more grass clippings (I know too many is bad!).
I have never had good compost from "dalek" bin. Good for storing finished compost though. A couple like the ones on Lez's post would be better and occasional rotation of contents from one to the other. The best compost I have made was when I had access to shredded tree branches as the brown component to mix with the green. I take my hat off to the guys who can pee into a dalek bin from ground level!!
Though bind weed is easy to spot in the compost if it's still growing which it has a tendency to do. You could always drown the weeds then add to your bins but that is smelly.