Wow! Never would have guessed that a router bit would cut through frets! Then again, they weren't stainless steel...
AFA the second photo, since the deepest cut seems to be just at the side dot that'd be a perfect line for the rest of the neck. Make it rounder if you wish but start with that bevel. A cabinet scraper might be the right tool although a sanding block might work as well, or a Shinto saw rasp.
For the heel... You obviously mean the parts where the neck is wider than the fretboard? If it's the traditional LP type neck joint it's a no-brainer. On the upper side simply cut the excess off, on the lower side make the cutout a little wider, blending it in at the 17th or 18th fret.
The rolled sandpaper method works well with steep fret edges as it only cuts the sharp corners away, leaving a maximum width of fret wire under the e-strings. Actually I've done my best fret end jobs with that method!