Great to see you tackling the persp again and again. I have a suggestion tho.
If you keep 2 vanishing points fairly close on the screen you will get huge distortions just like you did get here. The hard part is putting them way beyound the page which automatically makes it feel more natural.
The best excersise for starting out is trying to draw perfect cubes in space, different angles, point of view etc. Try avoiding those huge distortions tho.
Anyway, good stuff D.