So in your words, an assessment where everything was fine would go from the usual “it's great, great, cool! I congratulate you and so on..” to something more professional as the review that follows:

The title of your post is consistent with your blog ... It is also very attractive ... I immediately knew what you was to talk about ... The post has a good length and provides enough information ... you have a good length of paragraphs, and each contains an idea ... You writing is light, flawless and well structured ... It was very instructive to read your text ... The text of your post was also consistent with the title of it ... you follow all the editorial line since you read the title of the blog to the text of the post ... In the end, I kept the message of ... (to choose three words)