Oh, oh, OH!!!!!!!! This is my pick for the blue. Both vintagey AND conceptual. The colors, the lighting, the SHADOW!!!! LOVE it. Inspired choice to show us the business end of the horsey.
Lovely. Exudes an air of nostalgia. You lift the veil of the past with this image to give us a glimpse of a memory arrested for a brief and fleeting moment in time. The horse has been very creatively placed to exact the maximum dramatic effect with it's shadow on the wall. Simple and uncluttered composition. Excellent processing to create just the right ambiance and mood with the tones, textures and colors.
Gorgeous shot and coloring. I think the composition feels a tiny bit heavy on the top-left though. I'd shave a little bit off either the right or the bottom edge of the frame.