This is a lava test? If that orange stuff is lava then there is some things you could do to make it better.
If you want fresh lava you might want to make that orange lava a little more reddish. Dry lava, as everyone knows, is black. You might want to stick some black specks in there anyway.
I guess it depends on what kind of lava you want, but anyway there's my suggestion.
Jahnu