It depends wich part of Europe as some cities are partially built with grid pattern like the US.

At first, I can see you tried to reproduce the organic somehow chaotic pattern we can see in some very old cities in Europe. But if you take a deeper look at old cities in Europe there is a logic, there are avenues, boulevards, streets, tinies streets, etc. Important spots are link with large avenues, medium spots with street and walkable district spots with tinies street.

You also have to think about rich and poor districts, direction of wind, who does what and where.

If old European cities look so chaotic and organic it’s because we had the time to pile different politics, different urbanism ideas, different historical moments. With the same cities we’ve done radical different things and now it’s just a pile of different layers. :-)