Give the painting contractor a punch list of items to correct/improve and see what the response is. If I understand correctly you're the GC on the project so I wonder if the HO has been exceptionally critical of other work performed or just this work? There are some items in the images you provided that I couldn't live with and some things I would say meets a reasonable standard. And Cocomonkeynuts is correct. Nobody is going to touch up a high sheen, sprayed surface with a brush and have it look right. Heck, there will be a color diff with the spray vs brushed area.