Looks like part of a window blind

You are so right! Yes, it is a part of a window blind :P
Also, I learned to take more pictures before I put them on pxleyes, it has to be focused on that blind.

try to find a feature on your camera called "focus lock" or "one shot" at a time...focus on what you want, push the shutter half-way and hold, recompose then push the shutter all the way...GL author, and nice idea here

Good idea!

Thank you itsmymoment, but I already know that
Photographing is my thing, but I was just toooooo inpatient for this, and, as always, my batteries were dying... I have regular batteries for my camera, they can't even hold for 2 hours.

(I was inpatient because I was holding this in my hands, and I had to hold the curtain and everything, so this picture sucks)