posted by John .
I uploaded 4 videos about Genesis on the Pixcow website. The first video didn't seem to have a good screen quality.
Is the expressions correct? Did I use the correct prepositions?
English Expressions -
The only thing I'd change is to delete the word "a" before "good" in the second sentence. You might also think about spelling out the number (four) instead of using the numeral (4).