Les Bohemes by Opus Oils is a collection of soliflores inspired by the 1920s speakeasies. These are mixed media fragrances (containing natural and some synthetic ingredients) and they are designed to layer well together.
Les Bohemes are available in alcohol or oil; I bought them in oil as it tends to last longer on my dryish skin. They are also available in EDP sprays and a variety of bath and body products.
I love Opus Oils - I like the subversive, decadent, try-anything-at-least-a-dozen-times sensibility. The website is at www.opusoils.com and although they are based in the US they do ship to the UK at a very reasonable price for small items like the fragrances (email for a quote.)