This is looking very nice! Congrats on having the patience and perseverance (I struggle a lot with making detailed perspective work!)
So, perspective wise, it looks mostly accurate. I think the topmost window over the platform is slightly off. Apart from that the symbol on the door looks a little skewed and larger on the left, but as it is slightly going to the left, it should be smaller to that side.
Then the proportions, I'm not 100% sure, but I think the doors on the houses to the right should be smaller than the house on the left, and the house on the left
As for the foliage, I think you did a great job as you drew each curve or leaf on its own, you didn't make it too messy or badly defined. I'd say maybe one solution to your problem could be to use a better defined brush, higher res image or if it's too busy, to imply some of the lines rather than draw them completely. If you under-paint this lightly with a textured brush and give it a water color feel you can more than imply the foliage without having to draw every detail for example.
Great work!
cheers