Fantastic day walking here. There was thick cloud up to about 900m (see through col in middle of picture) but clear above the inversion.
Can anyone name any of the pinnacles, especially the one on the left with climbers on top?

The big pinacle of your 2nd picture is named "el Cavall Bernat", symbol of Catalan mountaineering.First climbed by Costa, Boix & Balaguer back in 1935 thru the obvious open book showed in the picture. You can free-download more information about this amazing needle at:
www.rocktopo.com/free topos/Punsola Reniu

The group of rocks of the right side of the picture belongs to Sant Benet Region. From left to rigth, ELs Flautats, Sant Salvador (the highest of the group) and La Prenyada (the pregnant). You can free-download more information about this region at:
www.rocktopo.com/free topos/cami de l'alsina

As the man says - the Cavel Bernat. The original route climbs the short ridge past the tree then the left side of the big hanging pillar before moving right to the summit, 3,5+,4 I think. The long side is more impressive http://www.pbase.com/chris_craggs/image/56997882
Chris