Thank you for sharing a little about yourselves, @kengoodphoto, and that’s encouraging to hear you’ve been able to learn some things so far on Lenspiration!
I actually kinda like cloudy days sometimes, as it can make photos a little more expressive than on a “normal” day. Also, depending on the type of clouds, they can offer fodder for composition . On a clear, cloudless day, I am usually not incorporating the sky much, but sometimes clouds can an make otherwise plain scene more interesting (see attached).
Of course, you’re right about everything looking gray and dull on overcast days, so incorporating color as much as you can (the grass, even though it’s brown) and leaning heavily on a strong composition (like you did), are indeed ways for making cloudy days work. If there is no green grass and no blue sky, it means you’re attention can be more easily drawn to subtle colors that you wouldn’t normally notice on a sunny, summer day.
As for sharpness, yes, using f/8 or narrower is what I would use to get more of the scene in focus. Otherwise, you have focused properly and there is no camera shake, so the photo is technically sharp. The depth of focus is just kinda shallow.
The only thing I’d change about your edited photo is to level up the horizon. Otherwise, I like it!
