Staircases~~

I haven’t finish my 32 drawings of human figures and now..
we need to measure staircases and draw them out………. T-T
We have to choose 3 kind of different staircases that we can found in SP..
So my choices are..
SPIRAL STAIRCASE, STRAIGHT FLIGHT and DOG-LEGGED…
so we walk around the school and measure and draw and measure and draw…
and draw again and again and again…….