Okay the first one was easy (sort of). This is a Green Orb Weave Spider.
It is possible to separate these two species with a macro photograph of the female’s underside but I find that kind of information useless as it wouldn’t help with the next one we find.
There are also a few other rarer species that look identical but you need to study their genitalia with a microscope for a positive identification.
So we can’t go to species. These are Green Orb Weave Spiders.
They are very small, I have just been reading 8 mm for the larger female but I think that includes the legs, they are smaller than that.
An orb web is just a flat spiral web, the sort that you would normally associate with spiders.
I think that they are cute but then I am brave.