This looks like it took a loooong time, and its very impressive! I like it. :D:D The only little thing I would say is that where you made the end tunnel (pic #16) you shold have maybe rubbed out a little more of the ceiling? Anyway all good.
Hey Katy - this is very textural - I can 'feel' those surfaces. A suggestion however - the lightsource coming from the end of the tunnel doesn't actually seem to be effecting the environment; all the shadows/highlights are of equal intensity regardless of their proximity to the lightsource - this has the consequence of making everything in your scene seem equally important in visual terms, meaning my eye sort of 'glides' off it, and not into it - consider the tonal range of your highlights/shadows - lightest, light, dark, darker, darkest; for example - the glare on the big crystals in the foreground is super-bleached - but would it? Wouldn't it be more like a translucent glimmer? Just apply some real world logic to your lighting and I think this already interesting scene will 'pop'!
I thought the crystals in the foreground looked a bit weird, but didn't know what it was. I will make them translucent. I will see if I can sort the lighting out and give it more tone. Thank you.
no probs - you've obviously worked very hard - and now I want you to really finesse them in term of finishing touches and sensitivity for atmosphere. Think 'theatrically' - for example, if, to make this cave scene really 'pop', imagine you're 'on set' with an infinite number of coloured spot-lights etc. which you can direct at aspects of your scene to draw attention to them and create interest; cinematographers do this all the time - they make the scene work - and often introduce non-specified light-sources in order to do so... I suggest you experiment and 'save as' routinely...