The lettering is really poorly done. It looks like you did it by hand?
If so, you need to pay more attention to the space between the letters (see where nity in Christianity is too close together) and the stroke weight of the letters (see "pp" in apple, and others)
It also looks as though the whole text block is tilting down, to the left.
Casual lettering is fine, but it requires as much care as rendering sans or serifed text.