Writing for others

I dunno if it’s the same for any other songwriters but for me it’s kinda tricky writing for someone else. I wrote down 3 of them now and they like them but to be honest I don’t feel too happy with them. I’m wondering if other people feel like this when they finish their work as well. I remember Katsuhiro Otomo (Creator of Akira) saying he was never happy with either the ending of the movie nor the manga. Either way I guess if someone is happy with it then why should it matter right? Well I need to get ready and head on out while I can. It’s sunny outside but cold as hell again but then what do you expect from England I guess!