very fine pencil work!
Wow! It's good job. Congratulation!
Stalowe miasto. Ach architektura, coś co zdecydowanie muszę poćwiczyć...
Wow, such good architecture sketches. Architecture kicks my butt.
for free hand drawings, these really are quite marvelous, though I had to watch the video to find out which buildings they were and look them up to see that they are real life buildings (or at least under construction).
Very nice. They look truly beautiful. Great job.