Here's a desperate attempt to fix the unfixable - this sketch was laying for two months in the waste paper pile, until today, when I decided to see I can make it look like something. After all, I made an effort to make the inital drawing: went to the pub, sat near the window, spent some time sketching the street view.
Here's the result - I covered the half of the page with black ink, as it was the night anyway, and fix some detail here and there.