To create this B&W, I first converted the image to greyscale, in Camera Raw. Then to make the image more dynamic, I toggled with the exposure, contrast, highlights, shadows, blacks, whites and clarity, in the basics panel. Then to add even more contrast, I went to the tone curve panel, and chose medium contrast.

Like the steps for the previous image, in Camera Raw, I converted to greyscale, then made adjustments in the basics panel. Then I went over to the split tone panel and adjusted the saturation and hue for the highlights only, to create this duotone.