Thanks Michka: I'm quite happy with parts of the mini, but some details are a bit soft. Some of the sculpting was done after a bottle of wine, which didn't help getting sharp details.
Anyway, he's now based and waiting in the painting queue.
I'm working on another mini. I'm quite pleased with her so far; have to make sure I don't mix wine and sculpting again!
I also found these two cars which would fit well in a near future or even sci-fi setting. They're 1/43 but feel that they work OK with 28-32mm minis thanks to their unusual shape.