You are being very forgiving......
View attachment 436920
Image from
@Red Mars post above
The way in which they've fit together the pre-cast brick panels looks absolutely atrocious to my eye. Even the smaller gaps aren't good and I can see unevenness with the naked eye.........but the large gaps on the left...........oh.... wow....ugh.
You can make precast brick look good. Shim Sutcliffe showed one way on the hotel project; but there are others such as you using overlaid detail pieces/trim to cover the gaps.
What you see above will not be fixed with a bit of mortar or grout. At least not in a way that would satisfy me.