This week it will be simple as it can be. Justice League Silhouettes Nail Art. I think that the white background looks the best with the black figures, but it really does not matter at all.
It was not easy to make actually, I've been trying to make it look good several times and this is how the result looks like:
I've used a mechanical pencil to draw the silhouettes, but if you want to try this design, it is better to use needle or a toothpick.
When making the logos on them, you can try white acrylic paint, just beacause sometimes it is easier to apply making thin details. And also, if it came out too thick , you can always fix it using black polish and a toothpick.