The landscapes dyes seem to be acid or metallised acid dyes from what I read on the MSDS - which apparently will work ok on wood.

My current thinking is:
- Flame top dyed black and sanded back a touch, then dyed something bright
- Back and neck dyed a dark brown
- Add some boiled linseed oil for a bit more depth
- Finish off with thinned varnish once the oil is dry for protection

I've got a few colours of the dyes at my disposal, so I'm hoping they will turn out ok.