Thanks for the feedback

As I said, this is quite an old piece and this is really the only copy i've got of it right now (the original is somewhere at work, ill have to dig it up)
Dusty I agree with the light being too rounded off, I can see that atm its kind of like it ends as soon as it gets to the edge of the verandah area. Sharprm's model has let me see what i've done wrong and that it should fade out at a lot longer distance. As you can see also in his model, there are two light sources, so the pillars would have two different shadows, depending on the light source. I can see where you are heading though, if you were thinking that it was only the one light source. As for the shadows on the people in the dark, I wanted them to have some sort of light source but now that you mention it I don't really think the moon would be strong enough to provide that sort of shadow. On your point of the color of the darkness, I agree it should be a different shade to add a bit more color in the scene, maybe a bit more saturation do you think? I don't know if changing it to a purplish color would do too much for the feel of the piece.
Sharprm Thanks for the modelled lighting reference! This is exactly what I should have done before I began to colour this

You might be able to tell but I did create two shadows for each column but I didn't darken them when they meet like I probably should have. I can also see where I went wrong in the dark and lighter shadows being mixed up. The darker ones should be the closest ones to the light source etc. The blue bin shading is completely off and I can't believe I didn't notice it when I was shading O_O As for the "dice", they're meant to be designer hedge kind of bush things but the flowers didn't turn out too great in the dark

I'll probably need to refine my foliage style as right now it's a bit too plain for my liking.
Here's the original version, which was coloured as if it was day time.

I'll probably just recolour and fix up this one, to convert it to a night-time feel. Time to open the dreaded photoshop

(the original was created in Paint

)