I sure am a bit curious but I marvel at the changing appearance of you blog: photos or drawings, font... Who makes all these changes?
I do it.
I get bored with things when they stay the same for too long. Sometimes it is about making things look sort of seasonally appropriate. Sometimes it is about my mood. Sometimes, I stumble across a picture or a piece of art that I like, and that becomes the inspiration.
Sometimes I get crazy and make some wild change that I look at the next day and think, "What the hell was I thinking!?!?!?" Those variations don't last very long.
It is really just a way of entertaining myself, of using up excess energy. When I was younger, I used to do the same thing with the furniture in my house... My kids used to hate it when they were teens... They would go out in the evening, and I would rearrange the whole place. If they didn't make it in by the time I turned the lights off, I'd hear them crashing around in the darkness trying to figure out what the new lay of the land might be.