Doesn't look too bad to me - a bit small for 5 weeks, maybe...

The size limit on post attachments is 350K (can be as multiple attachments so long as they don't go over that size in total) - use something like the excellent free
IrfanView to reduce the filesize of images before posting them - if you download the
IrfanView Plugin Pack as well, you can use the 'Save As (for Web)' function which is dead handy. You can easily get images like the one you posted down to 30-50K without losing significant image quality.