This is how it looks in SimCity Rush Hour, with a thriving early industrial population.
In Sims 2 when first imported.
And with some neighbourhood decoration
With the advent of NightLife, we can see the neighbourhood decoration during play, and a forested Hood becomes a real, playable possibility.
Add as much more foliage etc as you like - I know some would like a very densely forested Hood but if I put it all in in SimCity 4, there would be too much for most. Foliage added in SimCity 4 cannot be removed in Sims 2 as your Hood grows, while Neighbourhood Decoration, addded within Sims 2 Neighbourhood screen, can. See my tutorial on making your own Hood for more information on this.
Another angle
How to use a custom Neighbourhood Terrain