Krusty,
the Fw190A-5s were used until 1943, typically with the more 'lighter' shades of color before the LW paintjob agenda changed in early '44.
Like mentioned in other posts, there isn't really a 'correct' sample of RLM colors, but there still is a bit of consensus among the modellers and their research. The colors you are using are much too dark in intensity IMHO. These earlier 190As had somewhat resemblance in colors of those earlier 109s between 1940 and 41, with very lightgrey + palegreen shades as the undercoat, with a two-tone, darker shade of grey/grey green as overcoat/mottling.
The most famous depiction of Erich Hondt's "Black 13" which can be found in the net, would probably be Jerry Crandall's(which I'm most certain you probably would have seen);
Here's another take on the "Black 13" by Scott van Aken;
My 'intuition' (well.. okay.. wild guess..) is that Crandall's colors are better than van Aken's, but the shape of the unique 'stripes' on the cowl would probably more close to how Aken did it. Crandall's attempt on the stripes are a bit unnatural.
Another great source for color samples is Eric Whipple's work. This Fw190A-5 model is what I used to sample my colors when doing Egon Meyer's 190A-5
Notice the pale grey+green undercoat, the darker grey overcoat, and darker grey/green for mottling patterns.
