Putting up a new picture every-single-day is no problem at all. It's putting up a good one where the problems arise. I've seen that you put up a lot of shots just for the sake of putting something up (even if you're not happy with the shot). Do you shoot for improvement, or do you shoot for your blog? Hope that makes some sense...

If you are continually disscouraged about your blog photos... don't post. It's better to have quality than quantity, and ultimately you decided what is quality...not knowing much about photography, I don't quite understand what "quality" is, but if you can't even please yourself, what's the point, cut back and concentrate on personal enrichment. On a much less "mentoring" note... I like how the light catches the flower.

Agree with the last two comments. I reckon it can be easy to get caught up with needing to post every day. Surely, the overriding things must be whether it gives you pleasure and whether the photo is worth posting (either because you're happy with it or you would like others opinion for improvement). Don't be so tough on yourself and just post what you feel you want to!