for a contrasty conversion, you have achieved it. However, IMO, unless you were going for that look, it was overdone. You can do a lot of conversion in Photoshop, by using the Channel Mixer dialog , clicking on the MONO box and then controlling the contrast by using the thee color channel sliders.
The background tones look great, but the high level of blow-out in the shirt and her face kind of ruin it for me. Personally, I prefer high-contrast where the whites/lights are almost blown but still retain a modicum of detail/texture, even if it is very subtle.
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Since you have taken the highlights up to where there are nearly blown, the background now becomes the focus of attention. Personally I would adjust the blues to lighter tones and go with a high key image.
You might consider toning down the lighting on the upper 1/4 of the BG as it makes the B&W conversion much tougher - it easier with more even lighting on the BG. I ran the image through SilverExf Pro 2 and aside from that it was very easy to generate dozens of unique looks (using presets as well as picking various film stocks, controlling grain and so on), but that BG lighting made getting an even mono BG tough.
Not a bad effort at all. Perhaps it could be improved by darkening her shirt/blouse as it takes too much attention from her face. I'd also like to see the background less prominent as it's quite distracting.
By the way, you 'want' rather than 'need' feedback.