Your FedEx label looks messy.
Return and Ship To address blocks have blatant spaces when any fields are empty.
For example instead of:
Mike Smith
123 Main Street
Seattle, WA 98207
it looks like:
TO:Mike Smith
123 Main Street
Seattle, WA 98207
Why the empty spaces? That's where the Company Name and Address Line 2 fields would normally print. If they are empty, then the address block has blank lines which looks horrible. This type of formatting (suppress blank lines) is easy to implement.