Assuming it's a female you would have to photograph the epigyne on the underside of her abdomen. You could use this site for comparing the two species - ovata and latimana.
araneae - Enoplognatha ovata
The second one (and so also the first) is a Salticus species, presumably S scenicus. I'm not sure about either of the ones in nthe third photo. The largae one may be another S. scenicus but the smaller one has distinctly banded legs and I wonder if that could be Calositticus pubescens or...
It's probably a young Zygiella. However, if I'm right, it's only familiarity with the species that has got me there because there aren't really any clues in the photos that might have allowed it to be keyed out.
Spines on legs can be helpful because some families have more than others
I think the second is a wandering spider, Ctenidae. You can find pictures of similar ones on Flickr but I'm not sure how safe the IDs on there would be. This site might help though -
I don't know for sure but I wonder if it could be a soldier fly larva
I'm pretty sure the first is Menemerus semilimbatus which is a very common salticid in S Europe
The second is Oxyopidae, probbaly Oxyopes heterophtalmus but I don't know which other oxyopids are found in Spain