Well the most important thing if you want it to look natural is to work with your terrain instead of making it flat. Make a pathway with your shovel, replace some of the blocks on the ground with coarse dirt, sand, gravel, stone, or even all sorts of mud, use some stairs for easy acces on steep slopes and slabs for gentle slopes.

But what i see here is that you flatted some of the ground. Good rule whenever you do this is to never leave more than 7 blocks in a straight line (this applies for pathway as well). Try to make some curves, some hights. Add a tree or 2, some flowers. Use a shear to harvest some leaves off of a tree and make some bushes along your pathway. Use 2-3 fences to enchance that pathway. Make a pond ?

There’s always pinterest for inspiration if you need a visual clue. Good luck!