Posting six this month, since there was a little confusion as to what the actual topics were lol ....
Hard:
Hard light, hard shadow, hard surface ... I think this qualifies!
Canon Sure Shot 85 Zoom, Superia 400
IMAGE LINK: https://flic.kr/p/Nwxy8k
007 hard
Soft:Not the biggest pile of leaves ever, but soft-ish ...
Canon EOS IX, Fuji Nexia 400
IMAGE LINK: https://flic.kr/p/NvfCnJ
013 streetleafs
Cold:Mainly an editing thing here (that is NOT what Superia 400 usually looks like!), but I was looking for glass, metal, blue ... anything that said cold to me.
Canon Sure Shot 85 Zoom, Superia 400
IMAGE LINK: https://flic.kr/p/Nwxyk4
002 cold
Wet:Had some more fun with editing this one, but it actually was this wet -- I was behind a waterfall in Pisgah National Forest.
Olympus Stylus Infinity, Superia 400
IMAGE LINK: https://flic.kr/p/PzKuZp
036 wet
Cerebral:Well... I got to thinking brain, then head, then skull and .... yeah.
Canon Sure Shot 85 Zoom, Superia 400
IMAGE LINK: https://flic.kr/p/NwxxDV
015 cerebral
Warm/Hot:I went with Hot... roasting marshmallows at a big fire at the local botanical garden.
Canon 5DIII, EF 28-135 f/3.5-5.6 IS USM
IMAGE LINK: https://flic.kr/p/PzKvJk
1824 hot