Ok so here is the next lot, the same batch of dye different amounts of colour on the skein and cooked for a lot longer to try to get the brown a little darker - we still got a russet colour in there. This just shows how reactive on unreactive dye can be on wool. The wool was also soaked overnight in fixer to try to get a better fix on the darker colours. 
Going to dye more similar colours in a different way again. as I am just loving this colour combination.