Thujas at the front + updates

Bought two thujas from the Salvos on the weekend just gone (plus murraya and some pansies) - they will be large balls over the murraya and min-a-min hedge at the front, in John's Garden.

About the thuja   -   https://plantsbymail.com/shop/emerald-green-arborvitae/

Can I not create an area like this (below)?

7 August, 2019 - Third thuja went in yesterday. I watered it will and will give it some Thrive on the weekend.

I want lots of pots with balls in them, like this: (Mark Sikes)