":Hello again WHZhang, the helpme template is disabled once a helper answers a question, it prevents it from constantly pinging us on the irc server. Anyway yes, if you can it is far better to secure permission from it. Read how to do it through Wikimedia Commons' Open-source Ticket Request System. They have an email template here.

As for cropping, heh, I understand, but some of the pictures are actually at their default resolution of 3048 x 2272 pixels which is not acceptable. You can read the template present on your images after you chose the license and uploaded (For example, here, it states what you need to do to ensure it is qualified under fair use. You can upload a new versions of the file through the links at the bottom of each image's page (The two which say 'Upload a new version of this file' and 'Edit this file using an external application').

The FUR Doesn't need to be that detailed but it has to be persuasive. Think of it as you arguing why you think you have the right to use it to a court of law, heh. I can't find any pictures uploaded under FUR now but you may want to look around (albums, movies, and books usually have pictures that are uploaded under FUR) and see how they wrote their rationales.Soul 

"