This is my first collaboration with this client. We communicated according to the terms of reference and conditions, then moved on to the price question, and he immediately asked for a discount, justifying it by the large volume of work. I made concessions and lowered the price by 300 UAH for one photo - a total of 600. The client clearly wanted it even cheaper, but I politely explained that this is our first job and I cannot do it for less.
Out of the 24 hours that were given to me to complete this project, I spent 12 specifically on working on these 2 renders (because there is still time for sleep and food). I provided the results (renders and Photoshop files with the replacement of paintings with my own). The client immediately refused to pay and quickly, within a few minutes, closed the project through support with a negative review.
It is the client's right to take the money if they are not satisfied with the quality. But to write a negative review without knowing how and how much this is done is not right. I do not believe that my work deserves a negative, the lowest review (it will be in my portfolio). I understand if I had ignored the client, said I would send it tomorrow, and sent the result from the neural network in half an hour - then yes. But unfortunately, the client does not appreciate the work done and has no respect for the performer and their time.

A good, communicative client, always in touch, responds quickly. I can recommend for collaboration.