What else did you think 1&2 might be John? They look spot on to me.
3 looks like Dark Arches but if you were thinking Dusky Brocade (which it ain't IMO) it must have been on the small side.
The oly is probably pruniana.
The first two are moths I have never seen before and when that happens I start to doubt myself. Don't forget I am nowhere in the class of you guys as I am playing at it in comparison to you all.
Looking at some back photos of Dark Arches none of them look anything like this one but I have to admit that now I have checked the grid squares that both moths cover and they appear to be of similar size so you are probably right. I really didn't think it looked like a Dark Arches, which is a moth I can usually ID at a glance.
Looking at UK Moths I tend to agree with pruniana. One of those I looked at myself but passed over in favour of my ID.
Thanks for the help Brian.
John