"Street" Photography - Long Exposure

Disclaimer: today's photos in this post are NOT real good. BUT I wanted to document my first attempt at long exposure shooting. I learned a couple things and hope to continue to learn more. I am still playing with settings for this and will get out my tripod next time but here's a few of what I got.

Cars driving down the street:

 

The light in the park across the street (that also illuminates the tree [green and brown blurs]):

 

A small airplane flying across the sky:

They're not much to look at but hopefully when I look back in a few months, I will see improvement with this technique!