Running a test render in Blender
Running a test render in Blender
Everything is working well so far. You can view the original resolution render by clicking the image.
You're unsure about your goals in Blender, but the image size is problematic. 1080 resolution is typical and keeping it higher will slow things down. From what I see, counting polygons quickly makes it fast, though for more detailed work 1080 remains the best choice.