As above I remember one of my old riding buddies in the early 90s had a green marble effect Townsend for a while. That one had straight forks but maybe they did other marble look models?
The paintjob is reminiscent of some Diamond Backs but the cable bosses less so. Anyhow. It seems British but personally I don’t think it’s a Raleigh. Maybe Emmelle? I remember seeing a few with a pretty “wild” paintjob.