Forgive me if this isn't in the right forum. I badly need advice concerning what is acceptable when charging for concept art.
I'm currently working on a huge contract that will span months. So far it's been a dream job and I've been getting paid fairly. Every now and then my client doesn't exactly know what they want and so I'm stuck working days on a character design (anything from quick sketches to fully rendered pieces which take hours and I'm not compensated for this.) and I'm starting to feel taken advantage of...
The deal is that I get paid for finished pieces once the process sketches have developed a character design that has been approved. Sometimes however, the process sketches can take days to develop because the client doesn't know what they want. And therefore I'm not getting paid for my work while at this stage. At what point do I say enough is enough and start charging for my time? Or is this normal? I don't want to mess this up as I otherwise have a good thing going here. But it's frustrating to spend 3 plus days on a design only to have it continuously rejected and therefore not paid for. How can I approach my client with this matter? Any and all advise would be very appreciated!!!