Chunky - that's a great picture taken in Witches Cave II. (It's not Shuttleworth Pot by the way - that's the name of the excavated section which now provides a dry entrance to Witches Cave II.)
The main reason for my posting though is to ask about that picture of your photographic gear, pre-Titan. There are three items next to the right hand side of the large orange cardboard box. Are they video lights? Just interested to learn if you're using these, rather than flashguns, for still photography. (That Titan picture's a cracker too.)
Apologies, I stand corrected
The torches are BLF Q8's, cheap and powerful. For Titan I used them to light up the chamber to see what I wanted to photograph.
I don't often use a tripod, but they are great at painting in area's on slightly longer exposure shots. I don't really shoot just with fixed light or light painting, you'd do better seeing if you could get advise off of Nicky Bayley or Steve Sharp for that style of photography, both get amazing results without the need of heavy camera kit.
The only time I use them in photography is in mixed lighting. The shot attached has light painting from 2 of those torches which have painted in the stream way, ceiling and the right wall. You can see the colour balance is slightly different if you look closely.