They offer free samples, maybe you could stitch them out and that will give you an idea of the type of stitch they use.

I haven't a clue - but will bump this up for you.

It looks like a combination of blanket and run stitches.

I downloaded a few of the free samples in the 'Feathered helpers' and the 'Veggie delights'. Then I opened one in Embird and had a look with 'Edit in Studio' - they used the redwork stitch for the 'stripey' bits: roses, leaves, bows, baskets etc.

I traced one of the flowers, used the redwork stitch, max length the default 3.5 mm, combined the bits with the tree-like icon and got the same result.

Looking forward to seeing one of your patterns in projects!

Mops has given you a fantastic answer..
I also look at designs this way from my favourite designers so I can learn from them..
Big hugs from London
Maria xx

Teri, Using a triple stitch or a back stitch is suitable. I like using the back stitch.Stem stitch is good to use for flower stems.
This gives the design a hand stitched look.
Just be careful using the old patterns. They might still have a copyright on them.