I took this this mornng, but it came out grainy and this was the best one!
it came out grainy because the ISO was quite high, I see it was set (probably automatically) at 800, because of the low light. On most cameras, the photo will appear grainy at anything other than 100 or 200.
You used the setting of 0.5 sec shutter speed and f/3.1. Did you use a tripod? If so, try setting the shutter speed to, say, 3 secs, and knock the f-stop up a bit to around 10 or 11 and see how that comes out. If there's an option to set the ISO yourself, you could set it at 200 to keep a sharp photo. Try doing a few shots and alter the shutter speed slightly after each one. If it's too dark, then reduce it to, say, 2 secs, then 1 sec, etc until the photo is well lit. On the other hand, if it's too bright, then increase the shutter speed from 3 secs to 4 secs, then to 5 secs until it looks ok. Let me know how you get on.