I must disagree with you, personally.  My intent here was to clean it up and not include textures or shading.  So I didn't.

 looks good for a first piece of isometric pixels!

you've got the basics down well in this one - it just looks unfinished to me. everything is in the right place, the angles are right, it all works out great - it just looks a bit too.. clean! it would look a lot more interesting with some subtle textures thrown around here and there. for example: tiles on the sidewalk, asphalt on the road.

apart from the basic look, i think this is pretty good. it reminds me of when i was pixelling around in the simcity 2000 urban renewal kit (scurk!)

heh its nice, i like trees :)

And I did spend about an hour trying to get the shopping carts just right.

It's a bit choppy, I know sorry.

very cool iso work dude. Too bad it's cut off at both ends. You should also try and remove that white bg. those shopping carts are perfect!