Southpa, thanks for the compliment. But I'm no pro, just a hobbyist. I think it doesn't matter how the welds look as long as there's good penetration. The only time it may matter is if there will be no paint on the metal, which is not usually the case. Protecting the metal from the elements after repairs seems to be whats important. I think what really matters is will the ole truck be solid again? By your pics, I would say YES.
GOOD JOB! 