great stuff, is this what you do in your spare time
the bench scene captures the complete atmosphere, very nice, one thing that you could maybe improve on is the painted rusty metal bits .. there are a lot of them and seems to look a bit flat, maybe you could try and make it glossy with a specularity map, you could probably use the texture map for that, lower it to minimum just so it makes a distinction between the rust and paint, there are probably glossy parts on the railings from when people use it gets a bit polished, you know those little things you don't even notice but you know when it's there..
nice glass work, what did you do to make it look dusty like that