Put a dark brown / black MIG wash thinned down even more over most of the ship. In the process of cleaning it up, then I'll do some oil weathering and streaking.
>>5791235I believe it's called "Klear" in the UK, you should be able to buy it there at a local store.
If not, just use another acrylic gloss varnish, it's all pretty much the same stuff. For example, Tamiya X-22 is a good one.