Blog Page Images Issue

I love your design however there is an issue bugging me, and I can’t seem to figure this issue out.

The images on the default blog page are floated to the right and small vs being a larger image or at the very least in the center of the article.

The other issue I am having is the homepage template has nothing in it?

I have already installed Regenerate Thumbnails plugin.

https://img27.imageshack.us/img27/4714/ycce.png