Ummm, not quite.
A - Agouti pattern. Banded hairs and light "trim." [other options at this locus: self (a) - solid colored body hairs, no white trim; and tan (at) - solid color body hairs, light trim]
B - Black color [other option at this locus: chocolate (b)]
C - Full Color. Rabbit produces both yellow and black pigment, as much as the other genes will allow, anyway! [other options at this locus: chinchilla (cchd); Siamese/shaded (cchl); himi (ch); and REW (c)]
D - Non dilute. Rabbit has full black and yellow pigmentation (as much as other genes allow) [other option at this locus: dilute (d), which reduces pigment in hairs, and causes pigment granules to clump together, allowing more light through and making color appear lighter. Black becomes Blue, Chocolate becomes Lilac, etc.]
E - normal extension. This gene permits black pigment to be extended in the normal way down the hair shaft. [other options at this locus: harlequin (eh); non-extension (e); and steel (Es)].
The non-extension gene (e) pushes almost all of the black pigment off the hairs, allowing more of the yellow/red pigment to be visible. The steel gene works almost exactly the opposite of the non-extension, allowing more than normal amounts of black extension on the hairs, almost completely covering up the yellow bands. Normally, the capital letter designates the most dominant gene in the series. With this series, the normal extension gene had already been given the designation of E, when they found out that the Steel gene is actually dominant to the normal extension gene. That is why there are two capital letters in this series! Steel is one of those weird genes, where animals that have two copies (EsEs) show more of the effect of the gene than animals with only one, plus a gene that is more recessive (EsE). EsEs animals are completely black, looking like a black self, even if they have agouti genes.
I will assume that your Fawn Flemish is what most people mean by fawn (some breeds give a name that means one thing, to a color that isn't the same thing genetically. The Cinnamon breed of rabbit, for example, isn't Cinnamon colored [chocolate agouti] but actually Tort, go figure!!).
A Fawn is A_B_C_ddee
A Blue Steel is A_B_ C_ddEs_
All of the babies from such a cross would be dilute colors, since both parents are dilutes. Some of the agoutis would most likely be Steels. Flemish do come in self colors, you can't tell just by looking whether an agouti-marked animal carries a self gene or not. So the results would be Blue Steel, Fawn, Opal, possibly Blue, Blue Tort, even REW if the parents are both carrying that recessive gene.
Just when you think you are getting somewhere, huh?