Hmm, not quite sure I like the idea of putting a red wall sideways, seems a bit strange to me... anything else?

BRAWL 2013 ENTRY Quack In Time
"Why in the world did you do a weird language if you know English?" - tenny1028

Any kind of transparent yellow, orange or red bricks mixed with smaller black bricks all loose in a pit, with back lighting.

If you can't do back lighting, I'd suggest doing the same but with opaque (normal) bricks.

Believe it or not, they look far brighter than  non-lit transparent ones.

Yes, such great advise on such a large scale .

That's just your opinion. Just because you don't like clay in brickfilms, that does not mean that it won't work.

Well, if I had to give my advise, I'd do what Bricky said (And it seems like you're taking his advise). Just to add to it, though, I'd create a brownish sort of background, because even though the inside of a volcano is dark, it's still colored brown, so you should try to create one that way (If you want to, of course).

Yes, I think that looks like lava.

Although I meant smaller, loose pieces haha.

But still, it looks believeable.

Like not attached to anything.

I think Squirlz Water reflections has an option where you can change the color of the water. Make it orange or red and light the scene with an orange-ish tinge. (Orange tissue paper over a lamp works surprisingly well).

Okay, maybe, you could make something like a rocky ditch, and put some red and trans oranges bricks in there, and maybe a few black pieces, not attached or anything, then just push it along to make it flow like a river.

You can just make lava in GIMP or Photoshop.I use GIMP.I'll show you some pictures of (fake) lava when i'm done.

Well, I actually want to make the lava with bricks or maybe clay or cloth, basically I want the lava effect to be in-shot, not added in post-production. Thanks anyway.

BRAWL 2013 ENTRY Quack In Time
"Why in the world did you do a weird language if you know English?" - tenny1028