Summing up
informal language
In conclusion
It is generally believed/agreed that...
Even though
All in all
It cannot be denied that...
Lexical variety
as well as
Although
I firmly believe
Many people think/believe/feel that...
What is more
In addition
I personally believe
vague language
Layout: Does the piece look like an essay?
repetition of words and structures
Accuracy: Have I made any grammar mistakes?
All things considered
Content: Have I included all the info in the notes?
To sum up
My personal view is that
In my opinion
Besides
Moreover
On the one hand/on the other hand
However
Despite/In spite of
contractions