What's 'normal' look like?

We now have the cylinder head apart. We have ordered a micrometer that reads to three decimal places but it hasn't come in yet. So we can't give you any measurements, but since we're novices, we're wondering what these are SUPPOSED to look like, and whether any diagnostics can be done from what you see.

History-- This is from a 1981 300TD. The previous owner said it suddenly started smoking badly one day (at around 200k km, or 140k mi), then failed aircare. He had compression testing done, with readings as follows:
Cylinder 1- 271
Cylinder 2- 238
Cylinder 3- 294
Cylinder 4- 264
Cylinder 5- 235

Bleck! The owner then sold the car to us, we pulled it and are hoping to put it in to Buttercup. BTW, we expected the car to barely limp home, but it had a lot of power.

Anyway, have a look and tell me what you think. I don't think valves one and two are supposed to have that build up, and valve 3 looks wet. Nothing really matches with the compression readings.

The cylinder walls look pretty good.

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Natalie