How would you start this project -would it need cement?

I have seen the different shaped molds at Lowe's... you would get the different colors by adding colors to the cement and the mix the molded pavers up.

First dig and level the area you want your walkway then put down sand to make it even more level. Then place the larger stones where it is natural to walk and then add in the small ines around the larger ones.

after you are done creating, sweep a thin layer of sand over everything being careful not to disturb the smaller rocks.

you can use sand....if you place the big stones deep enough to hold everything else in

I would dig down the depth of the larger stones, level off the soil, add screening (the small flat gravel) then a thin layer of sand tamping after each layer of product. Lay in the large stones then the smaller ones. Once you have your design in place fill in with a full layer over everything of sand. If you know someone who owns a vibrating machine used to settle cement or paving stones borrow or rent one and go over the whole thing, this will 'set' your stones in place. You may need to add more sand afterwards and repeat the process.

There's also a liquid sold in 5 gal buckets by Home Depot that you use to seal and set. We are looking to use it on a patio with stones. It sets like cement but it's clear.

I made a flagstone patio a few years ago (that has now been completely destroyed by needing a new septic system in that spot). I think the process I used may be similar to what you're doing. I dug out the area and put lime screening down. Once it was levelled I put sand and levelled it again. I then placed the flagstones, levelling each stone. Finally I put crushed granite (little pebbles) between the stones. It was beautiful for a couple of years. Then grass and weeds starting coming in between the stones. It was a royal pain in the backside. If I were to do it all again I would use concrete as it would make it easier to keep the grass and weeds out and make sweeping the patio easier. Thus, I suggest you use concrete with your walkway so it will be more likely to stay as beautiful as it starts. Gorgeous walkway. Please post your final pictures.

I agree with Endbullingnow. I made a walkway with bricks and it was beautiful for a couple years. Then the grass and weeds started coming up in the cracks. I even put landscape fabric down before the sand and it didn't help. I would definitely set the stones in concrete.

put sand on top the stones and gently brush into the cracks (I would use a paint brush so not to disturb the stones)...water to pack the sand, pour dry cement on the pavers and sweep in...water again....when completely dry...sweep off or use wire brush and remove excess concrete...this all should be done if the stones are first put on sand. know your frost line....the depth the ground freezes....start everything below the frost line measurement or first hard freeze your walk will crack and heave

Here's the link to how it was done:

https://www.hometalk.com/diy/outdoor/walkways-paths/creating-a-stone-mosaic-front-garden-path-37447312