Hello, at the beginning I will emphasize that I am not a mechanic and my knowledge comes only from what I read or watched 
I have a Pasat B5 1.6 petrol / gas engine as in the description of AHL I bought this car a year ago and everything was ok until white smoke began to appear from the pipe at the beginning everything was still to be accepted, it did not lose power, etc. until it finally started to smoke on 3 it was enough to unscrew the plugs on the 2nd cylinder from the cabin side to clean and he kept going and so every 100-200 km later it was only worse average oil consumption is about 1l per 100km cleaning the candle was not very successful because after 10 km it was covered with carbon deposits
I started to study tips, watch movies and it was mainly written to check compressions oil test and then you will know what's going on I live in a small town where there are 2 mechanics so I went to 1 that there is no equipment 2 that there is no time for such fun and so I flew a few more in the area but either there is no time or I am busy ... job and the fact that I have no equipment, in a word, a massacre. I hardly thought, there is nothing else for me to do, because I do not have the equipment myself, so I thought that I would take off the heads and maybe I will find out something more, all the more so that just below the head, everything is covered with oil and I thought maybe it was just a gasket. So I went to work after about 2 hours, the head was already removed on my table. And now I need help because I do not know what to do with it, I have no idea where the fault of burning such an amount of oil lies, is it the fault of the leaky valve seals or maybe the rings for this I am uploading a few photos, maybe someone will tell you something and you will see something 
For my part, what I could do with the tests, I checked the tightness of the valves using the kerosene method, it turned out that a little kerosene had drained, so I know that the valves for replacement as to the rings were first poured into four cylinders for the same amount of kerosene and checked how long it would drain, but so far it stands . I'm a bit worried about the head because I can see a lot of scratches. Do you think that replacing the valves and gaskets will help or should something else be done ?? 
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haha. 