I have been interested in photography all my life and remember quite well developing my first black and white films myself... My favorite subjects are...
It's a great image, well spotted. I think B&W and colour bring different things to the same image, so I feel either would be quite striking in different ways. I like the yellow and blue combination, two colours that always go well.
ah yes the blues and yellow echo each other well on the two sides of the image, definitely one for colour. Love how you got these men lined up and all at work.
As much as I love black and white I think you made the right choice to go with color. The yellow and blue really pop because they are opposite one another on the color wheel. And it's fun to see the similarities of the workers too. Great shot!