I think this looks GREAT, but what I would say is that is that if you're planning to give it out to people then maybe an A6 postcard rather than A5 is a better size, as it fits in people's pockets much better. If we went for a smaller size we might have to increase some of the text sizes a bit to keep them legible, but other than this i think the design will work well reduced down to A6. I also know of a printer that can do 5000 of these at that size as nice postcards for about £120. Unfortunately it doesn't get any cheaper than that as that's their minimum print run. What say we all?
@ Marian: if people think this size and quantity are a good idea I don't mind helping you get the job ready for sending to a (proper) printer, as there are a couple of things that we need to do with the file before we send it off (I know this sh*t unfortunately - I used to do this for a living).