Efton, from the EXIF info, I can see that the posted photo was of a size of 670 x 501 pixels. So it has been automaticly resized to 600 pixels (I know, I am quite boring with this but I know that people that keep posting will improve GREATLY with this little advice)
When I save my 600 pixels image with quality of eight (8=High quality) in PS, the usual size is around 100 Kbytes. I am generally happy with the result and I post. Sometime, I have to improve the quality and then I reach file of 200 Kbytes.
It is funny to see that some posters use high compression and other very low.
With photos of around 30 Kbytes, it is very easy to see the Jpeg artifacts.
In this particular shot, you can even see blocks of blue colour in the sky and the sharpness is not really that good.
Imagine this shot with a good sharpness !
I will upgrade my rating immediatly if it goes better.