You're using one of the default themes, it's too simple, you should get a different theme and a logo.
kingofsanda, you give comment, so responsible to teach him/her My opinion: - theme is alright, simple enough and not heavy to load - current layout is not balance between column 1, 2 and 3. Column 2 is much longer than others, make it balance and will be seen better. - as kingofsanda said, change header with your own logo - no footer on your blog? That's all. Have a nice day in build your blog.
click "Customize" on blogspot menu go to Layout > Page Element > Edit Header > Configure Header > See on Image and coose Placement. Hope this help
Frankly the theme is a little boring and maybe you could adjust the font? Is that arial? I actually like the content, I just think you need better "packaging" of your blog.