i too really like the first one, perfectly timed shot! im never 100% sure about the b/w colour thing... but i can see why you would do it for the second one!
i have done it myself before, i wouldnt shun it, it has its place ... im just not sure about it
i think its because i like to think that everything i do would have been possible in a dark room... and im not sure that that is... you follow my meaning?