That looks like it. Some call it crazy paving. It usually gets laid over compacted paving sand/s. The joins between each flagstone are usually concrete with the edges concreted so it stays in place. I have seen some with sand between the joins which also looks good. New sandstone from Gosford Quarries looks superb but is expensive. (its a great product!). I'd look for some second hand stuff on Ebay/Gumtree/etc.

Probably comes down to your budget. A herringbone pattern would add interest, but may be more costly to lay than a stack pattern. It’s the colour of the paving bricks against your home that would be worth more consideration.

Looking for a free program or suggestion on how I could plan the design for my paver area. I want to put a chess board in the area with pavers and need to plan it out. have been trying to use a word document but tedious and results are less than satisfactory. Anyone got a suggestion on how to design the on paper using an app or program. thanks

If you look at your inspiration picture , the door there is a similar tone to your timber , the stone is similar , the charoal trim and windows are similar . The render is lighter than Self Destruct , and appears to have an 'effect' so it looks aged and rustic . So personally I'd go lighter , but also ask your contractor if they can do the subtle rustic effect , using two slightly different tones of render , and some water and brushes .