Thanks. This gobbo uses a similar technique - but this time I'm designing the textures specifically for a mini ...and I'm much happier with the result.
OK, here's a couple of cheap plastic 'bugs' from a packet of misc. Halloween 'creepy crawlies'...
https://i.*****.com/UTmkXnl.jpg
...and considering what they are, I think they've turned out OK.
Also, a few more (Reaper Bones) undead:
https://i.*****.com/PwJe0Co.jpg
And some proper 'bug' miniatures:
https://i.*****.com/RlzjyUU.jpg