Fairly nice conversion, but a few comments - my first response was "What the $%#$ is that coming out of its mouth?" After, that - general impressions- 1) backgound is very cluttered with all the dead trees in it...for me, they kinda detract from the central subject - the cow...2) the horizon is almost right in the middle of the picture, again, not a usually desired situation - look up "rule of thirds".
I am also curious on how you did the conversion, as it might look a bit better with a slightly lighter sky but then that's just me...
Also, there is a Black & White Gallery in this forum - might get different feedback if you posted the image there.
Cheers,
WesternGuy