I'll comment on your kind comments and then, I'll do my self-critic.
First, I was really really thinking that this attempt was like a child painting, something anybody can do with no knowledge at all. But, I personally like that kind of style and wanted to get some feedback. Thank you for having taken time to give your feedback. Once I'll get better, I will be able to give back to others what you're giving me with your critics!
Brandt, you show me a new English word: frenzy. I checked in my English dictionary and I think that effectively describe how I felt while I was doing this attempt. Kind of a transe! You also use the word "artist" which is way too much for me!
Blayne, you also used a word which is too much for me: talent. Not sure I have some!
Corvus, salable? Really? Your last phrase ("it has growth potential") really really touched me!
Tx Pampe and Dab.
About my self-critic now.
I guess the perspective would have been better if the base of the car would follow the green line. But, then, the rails should follow the long blue line. Too late to correct that in my opinion. Next time.
I don't really like the right foreground (big yellow circle). It doesn't look as the same street as the background (little yellow circle). So, I agree about Pampe's comment.
Finally, I think I have some shadows problem. Considering the shadow of the car on the street, there should be some shadows of tree in the front of the car. I'm not sure that would add interest in the painting however.
Overall, and your comments reinforce that, I am satisfied with it!
Thanks again everone for looking and commenting!