I think he did tend to fuss too much over his work. Probably because he began his career as a miniaturist.
He was weak on landscapes and figure groups . . . but when he was concentrated on a single portrait he was amazing. Here's another one I really like:
See-non-ty-a, an Iowa medicine man.
I can't find a good copy of the full-length portrait of Old Bear the Mandan medicine man with all his considerable regalia, but in the original it is stunning.
If you get the chance, go down to St. Petersburg Fl and go to the Dali museum.
Lots of great works part of the building had to be designed around several HUGE canvases. Your right, Dali's technical skills are astonishing. He plays with space and perspective so effortlessly. He also *Worshiped* his Wife (almost as much as he loved himself).