typical look of shingles installed during a cold climate. They will lay flat soon enough.
Use of starters? I think they used them, although the picture showing the gutter under the plumbing flashing which axiom is referring does look like they didnt use starters, but i think that they are there.
check on it.
The plumbing flashing could use some extra work to get it to last the lifetime of the shingles. I do.
Although, that is pretty standard the way it is.
The "ripple" that you are referring is not the fault of the roofer. the original framer installed a short piece of sheeting (2 feet) and is why you see the dip.
It looked like that on the last roof.
Yes, that pitch change metal intersection would have been installed better by a good roofer.
But i dont think it is hurting anything and would do more damage than good trying to make it look better.
Unless i did it.
Yes, that screen does need to be laying flat in that one gutter photo shot.
Looks like they need to do a lil bit of "punch out"
but nothing to be too alarmed about in these photos.