There doesn't seem to be a (very high) golonial angle from profile. From the front, there seems to be a high golonial angle. If you decide to do a vertical drop down, you may get a trade off: a better front but a 90 degree jawangle from profile, which isn't ideal, unless you lengthen your chin as well. But with PS, the least you change to get maximum effect, the better.
Also, consider the fact that the front is always more important than profile (profile isn't thát important). So a 90 degree jawangle or close to 90 degree won't be a disaster. It will still be aestethic. Maybe with a chin procedure as well, you'll get the ideal profile too. I think your profile isn't bad right now. It still looks kind of aestethic, despite the chin deficiency.
A final note is that your left jawangle is steeper than your right jawangle, which is causing asymmetry. You'll probably need more vertical dropdown st the left side than at the right side.
If you take a wrap around implant, you might think you need alot, but I think you just need a couple of millimeters here and there at the jawangles. Bad surgeons aren't able to calculate the right dimensions. Good surgeons are able to calculate the right dimensions. One or two millimeters too much or too little, and you may get a botched job, a bloated face or almost no change. The dimensions are very very important. If you take a chinwing, you need to go to the best as well. Thing is: do you have enough bone under the nerve or is it too small to make a cut?