I have a blog site about theme, and I edited some of its css to redesign it and to boost my adsense ads, but for almost 6 months and so it don't get better. What is your advice about ads placement on my website? This the blog address: wordblogtemp.com
1st of all you are using all ads same place which is bad manner you need to use banner on top and 336x280 that is ok but you need to change your ads place put ads below post title and header not like that which you are current using this is all bad placement good luck
Since yours a WordPress blog, most of the visitors are on to Single Page. You need to tweek Single pages perfectly. The following things you can do - Replace 468x60 ad code with 728x90 ad unit. This will boost revenue(allow upto 7 days for this ad unit to optimize) In the Post Footer. You can have 336 x 280 ad code. This has given me good results. I don't think you should change 120x600 ad unit. Its perfect. Do these and wait for 7 days. Now compare your results with last week and see the difference. Hope I get LIKE as thanks for the best likely advice.
you can also check on google website adsense about which location has more chance of click, more heat location to get more revenue
I would say experiment on different ads although it can take time but will give you the best results.