Monochromatic can include leopard print too! The term is usually applied to using variations of the same color in a design, outfit, etc. and to me, this outfit is that because of the tones of grey, black and beige. I have been living in these patent leather Zara boots and I love a good knee high sock moment, see Styling: Knee High Socks for more outfit ideas.
If you are also obsessed with leopard print and want to create your own, check out DIY Style: Leopard Print Shorts.