Nice work Roger
Think I prefer the first one. It looked inside out to me too at first then my eyes adjusted and now I only see the letters raised as they should be.
However, I'm always impressed by the m50 1.7 - that is one hell of a piece of glass. The stuff I have put mine through and it still manages to resolve fine detail even when only 1/30th of the image circle is being utilised for the 16mp image.
I would be interested to discover if it is actually a high-resolving lens in the real world, or whether I just work better with it.

It's not really a competition; it doesn't end, it's just an open-ended contest, so no rush

Blimey, that looks like a cracking combination. The bokeh on the tree branches looks a bit odd, but I doubt that's anything to do with the convertor.

Here's exactly the same combo as above (both on the K5iis BTW), but this time with lovely diffused daylight from the window, and a 3 second exposure instead of harsh flash with distracting specular highlights.
Good to be reminded - lighting is everything.
Oh... back to the original angle too, which helps the relief and composition.
This is about 20x macro I think. DOF 1/3rd mm

That's weird, the instructions are there plain as day now
Thanks, I didn't doubt there would be a price of some sort, I wouldn't do it if it wasn't benefiting the author somehow

Couldn't see any free option?

Magnification: pretty good.
Lighting: hmm.
Sharpness: Where?
Tried flash this time, instead of a great big sunny window. Looks like I need to diffuse it somewhat It just picks out all the crystals or tiny facets.
I think the the cheap 2x convertor is solely responsible for trashing the sharpness, either through not passing the resolution, or just being a bit crap
100mm extension, 2x convertor, 100mm macro - f5.6, 28mm reversed - f2.8

Now we're getting there
Is that bacteria growing on there?

I'm nowhere near my best effort last time, so I'm not finished yet
Johan, nice site

Not sure how this fits into the 'rules' but just out of interest here's a version with the Q, which is a bit like cropping (cheating)
The only lens able to resolve the detail onto that tiny sensor was the 100mm macro on about 100mm of extension tubes.