Hi Mihai,
I'll try to summarize the comments about the model. The pictures are probably optimized for printing thus the colors are not accurate. We'll wait for some "real" photos to see.
The lower part of the locomotive: the reservoir (red on the model), the bogies (black on the model) and the buffers (also black); should be grey the roof aswell.
The front lights on the model are smaller in diameter than the ones on the prototype, but I suspect this cannot be corrected.
Some grilles are not present on the model. The grilles are only on the older locomotives with lower numbers. This way the number 06 018 is inappropriate. To solve the problem a bigger number like 06 122 is better.
Казах накратко за какво мрънкаме, я кажете за тия решетки, че аз не я виждам много разликата и от кой до кой номер как са и какъв номер да си поискаме.