You've got everything out. You can buy a special ticktweezer to putll them out with. If you pull too hard with a normal tweezer you might split the tick up in two, but don't worry you've got it all out this time.
Don't squeeze the lump. Some dogs has an allergic reaction to ticks just like some humans has to moskitos, fleas, bees etc. and therefore they develop a lump.
Btw I took 4 out of my red cocker today, 2 of my black cocker and 3 of my newfie. I'm an expert in ticks
I live next door to the forest and we have loads of ticks. Bvadr!!!!!! :x