cobbled path with curved and straight elements and grass growing right up to it - maybe uneven edges?
If only I had the patience, but I might give it a go! Below is one involved tutorial I found to help get you started:
Curving river stones/ pebble mosaic path. Repinned by www.claudiadeyongdesigns.com and at www.thegardenspot.co.uk
Path from front door? Jeffrey Bale Pebble Mosaic path. I used broken concrete pieces from county road demo...found small rocks from creeks, went moss collecting in woods and transplanted garden grasses. Herbs work well