I find the black and white conversion very poor, as if you took the saturation and just slid it down. How did you do it?
I selected one of the R, G, and B channels in the channels dialog box of Photoshop, and converted the image to grayscale, discarding the other 2 channels. Forgot which channel I selected, but I chose the one that gave best result. I'm still new to this area of photography, so please any better techniques are welcome. Incidentally yesterday I was watching the first video tutorial on lightroom develop section, and found out that converting an image to black and white in lightroom gives you a lot of control on the result, much more that in photoshop. So I guess that I'll give it a try and see if I get better results there. Thank you all for your feedback.