Male and female wasp spiders?

Male and female wasp spiders?

Observation - Male and female wasp spiders? - UK and Ireland. Description: I've seen the usual wasp spider (3rd image) several times before. However this time, whilst in a salt marsh, I came across a rush area where there were several on their webs, and then noticed the pair of spiders on a single web in images 1 and 2. Is this

I've seen the usual wasp spider (3rd image) several times before. However this time, whilst in a salt marsh, I came across a rush area where there were several on their webs, and then noticed the pair of spiders on a single web in images 1 and 2. Is this a male and female pair? The larger bodied one that is out of focus was a "classic" wasp spider, but the thinner&longer spider I've not seen before.