Welcome here, I’m so glad somebody here is doing perspective studies 
I strongly encourage you to keep at it, the fruits will be sweet 
I hope you don’t mind if I point out at some little mistakes you did so that you could avoid them in further studies, here they are :

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First, I drawed 3 instead of two building on the left side just to show you how strongly they foreshorten with insreasing distance from camera. You can see that the third building (all 3 have the same length) is actually so thin that it’s barely noticable but yet so much increase the sense of depth. All 3 arrows in this image shows various vanishing points to which paralel lines are converging.
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Here I showed an easy method to find centre of a rectangle in perspective. Just make diagonals and where they cross is a true center of that object in perspective. I drew the door right in the middle of it for example. Here I also showed few horizontal paralel lines to get a grasp of how draw the tiles on sides of a road.
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This is something essential you should realize, that vanishing point are always behing objects, not in front of them. So to make a sense of the image no. 3 you have to consider it as seen from bellow (like if the floor was transparent). I drew a little guy seeing above to a building above him. You could see some crappy clouds receding on horizont 
Keep up buddy, looking forward to see more 