Very cool flame, it has great colors, and a design that rivals the best. I think if you rendered it bigger and downsized, that may clear up the jagged edges, which is the only bad part of this image right now. Very nice work though.
Nah oversample 3 would take forever...just render at 2000 and size it down to 1024. Thats what I do for the flames that are really jagged, it usually clears it up nicely, and doesn't take more than 2 hours.