8 always respect the deadline
Deadlines are crucial within the production process, especially when a lot is dependent on concept art being created at the beginning of the pipeline. Missing the deadline can affect all the departments that have scheduled their tasks based on the date of completion of the concept pieces. It’s important to let others know as soon as possible that you might miss the deadline, so that alternative approaches can be discussed, such as a looser rendering level with supporting references, or start the task with the available in-game assets instead of painting from scratch.
If a 3D screenshot can help you to nail the perspective faster and more clearly, go for it