Technically, those forms are calle Topiary, which is defined by tedious/exacting hand pruning into odd or ornamental shapes. It's very laborious, much sought-after and pricey when well- maintained and specimen-sized.
Feed now with Holly-Tone 4-3-4 Fertilizer, for good spring growth.
If you can get some up-close pics of the plants' needles/foliage, I can ID them for you. I used to have a large collection of many Topiary forms raised specifically for some of the large estates who were among my Farm's customers.
I love your garden and tre chat...but it truly makes me feel inadequate...bout all I can grow are dandylions and assorted crabgrass ;-)
Going to look for the Holly Tone now, I know it’s around here somewhere. Haven’t used it since I killed the Sky Pencil Holly at the old house.
Remember I have the 14’ now maybe 16’ southern magnolia I planted last year to prune so it makes a canopy Japanese/Ornamental style. I will send you pics of that too to see if we need to get started this year.
RE: pruning, the arborist was instant I prune everything during the winter, do you concur?