Hi! I have naturally level 6 hair, and I have blonde highlights and a dyed bass color of like 7 or 8. I have dyed my hair like 10 times, nonstop for about 5 years. Here it is:

Haha, I apologize for the crappy pictures. They're the only ones I have scanned.

I'm thinking of dying myhair dark auburn like this color:

 Do you think this would be possible considering my hair is very blonde right now? Do you think the blonde would shine through coppery and ugly? What would be the best thing to do in order to make it look very pure and healthy instead of coppery and overprocessed?

If you don't recommend for me going dark auburn, should I go my natural color or keep it as it is? Thanks so much!

Don't go too dark auburn.  If you're naturally a level 6, I'd suggest you stick with a level 6-ish red.  I think you can pull red off - your coloring seems to suggest that you would do well with warm colors.  I think you're best bet is to make sure the color change is done at a salon.