I have been doing some part-time freelance work in the past few months. I help people design websites, and from time to time, writing marketing proposals. To avoid IP issues, I only use pictures that I shot or what the clients provided me with. Therefore, in my service contract, I usually insert clauses suggesting I have full IP rights for my work (excluding what was provided by clients). My clients only have the right to use and any other rights as agreed. But people seem to disagree with this. More than one client demanded me to change these clauses. I've gone through several contracts for designing services, and they seem to agree with me and their contracts are usually drafted in a way that is similar to mine. My question is, who has the IP right for these websites or proposals that I made? Or at least, what is the "normal" way of approaching this under Intellectual Property Law? Thanks. Any input will be appreciated.