Sprite Upscaling Experiment

I wanted to see how involved it is to upscale some of my old sprites, so I tried it on this background tile. Basically, I upscaled the original sprite x8 then went to town with the smudge tool and did some touch-ups afterwards. I think it turned out reasonably well, but it sure took a long time... hmm. That's probably because this is the first one I tried, and I only got the bright idea to duplicate the bricks when I was already done repainting them all. Still, I am concerned that it took so long. Maybe I shouldn't be surprised about it though, because this IS one of the tiles I had made for my old Echidna Pyramid background sprite. But I still have a nagging feeling like there's some way to make this less of a pain.