These are posters that I designed for my friends from free educational project @cuckookukushonok (they are really good guys, who make the academic education more accessible in Ukraine!)
Usually, while working on posters, I use Photoshop (and I also add 3d objects made in Fusion 360 and 3ds Max)

I spent several hours for each poster

This is my first poste on Behance and I will be grateful for your likes