Small Planter for course: Concrete Furniture Creation for Beginners

I made this uneven small planter box with concrete using the tips from the Domestika course. I didn't mix enough concrete so the walls didn't get as high as the cardboard mold. The planter turned out really well in the end, it is quite small (about 10cm x 6cm). I sanded the edges with files and sandpaper. It is quite rustic looking. In the future, I will try adding coloured fish tank pebbles or concrete die to give a different effect.