Hey @MrTomatoJuice Great Job, i think you have the perspective down, there are a couple i things i would suggest and noticed that would improve your drawing.
1) the scale of the people compared to the stairs, it seems the stairs are half as big as the overall size of the people so i suggest adding a few more stair or increasing the size of the people.
2) Adding a few thicker lineweights to you drawing would help establish a sense of depth. its not necessary but it helps.
THATS IT, Can't wait to see more.