Angry sky, CC please!

Hey guys, tell me what you think, why or why not this is a good picture.

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I like it. Moody.

Looks like there is a spot on your sensor to the right and below the sun.

I like it too, but what is that weird round dot about 5:00 below the sun? I don't know why, but my eye was instantly drawn to it.

Hmm... I just noticed that! It's either a spec of dust on my lens or sensor. I'm betting it's my lens, however.

Just in case, what do you need to buy to clean a sensor?

I cleaned it with an air duster for now, if it's still shows up I will purchase cleaner.

Also, your analogy doesn't make sense. You don't notice the pencil because although out eyes see it, when your brain stitches together the picture into one you ignore the pencil. On a lens, however, it doesn't show up because there is so much light bouncing in around it that such a small spot is easily masked.

Nice capture, very atmospheric.

I'm sorry, either your photography teacher is an idiot, or maybe my face is horribly deformed. When I hold anything up to my nose, I still see it, no matter how far away I focus.