YOUR BEST WORKFLOW
Having a workflow is key to be able to finish a project on time. this could be different from artist to artist or even project to project. also, it is completely normal to go back at some points to redo or tweak jobs that you have done at previous stages. But try to keep the project in your workflow and make it a straightforward, linear pipeline. after the concept stage, modelling, lighting, texturing and postproduction are the biggest areas in the workflow.