Hello and welcome!
Here is a video of how to use this month's box media. Grab some paper, do along and explore!
Below you will find 3 NUDE model references for your inspiration to create the first artworks from Drink and Draw Box. Be aware that they are not safe for work, wink wink.
You can click on each photo to zoom in!

Good luck and have fun!
//okay. This actually is more about the theory of printing rather than art supplies. But it is really interesting!
Coated vs uncoated paper:

Coated papers have a coating on them (usually it is clay) so the ink or media you use won't soak in the paper fibers that much. It will dry out on the surface and give more vivid colors than uncoated paper. There are different finishes like matte, gloss, silk, dull.

But an uncoated one is more porous and hence - it will soak all the water, ink or any moisture that you put on it. These papers have a warm tactile feeling. In printing this paper is used mostly for books because it doesn't reflect light from the surface so it is much easier to read . In the art world mostly all papers are uncoated for example watercolor, drawing or sketching paper, bristol (multi-layered glued paper sheets from England).

Imagine the tactile feeling of a watercolor paper and glossy magazine paper - can you feel the difference?
BTW, Sakura Koi Coloring Brush Pens and other Royal Talens products are available in stores:
Zīmulis un Ota & Vilhelms