FW 190 D-9 and Oskar Romm - help needed

I have started to build Academy's "Dora" and purchased AJ Press monography, which is, unfortunately, in polish, but features some detailed photos. A my eye cought rather unusual color scheme - RLM75 over RLM76. The same color scheme is given in Superscale's decal sheet (Superscale does not provide any info about wing colors). But Academy's instruction shows standard three-color Luftwaffe camo. Various drawings, I have found pver the internet, show different schemes, which I found extremely confusing.
Another thing, that confuses me, is canopy. Again, different sources show the same aircraft with older type flat canopy as well, as late type blown canopy. The only actual photo, I have doesn't really help, though it looks to me more like blown canopy.

So, I'm asking for your help. maybe someone does have instruction bucklet from old Airfix, or 92's Hasegawa kit? I have also found, that there is reference about Oskar Romm's a/c in 1973 december issue of magazine "Wings".

i guess I'll just have to collect as many info, as I can, and then chose which one I like more