would you think this is ott for a wedding guest?

[magicpixie]

here

I like this, probably wouldn't have much reason to wear it though
plus its too expensive really

The green one? It's lovely but a guest should never upstage the bride. It's an evening gown, not quite right for a wedding. Sorry.

I really love it though.

Here, SunbathingCat

I'd say it depends on the wedding -it would need to be a fairly big /posh wedding for it to work I think. It's lovely though

I think it is a beautiful dress, but not really appropriate for a daytime wedding. At over £300 is it worth it for the few hours wear you are going to get out of it?

If the wedding is a black tie event / big evening do type thing, yes. Daytime wedding - no.