Here's some thoughts on this.
I added in some text for each step to better explain my process.
On the first pass I tried to figure out the size of the stick and keep it more consistant.
Also worked on making the end of the stick follow curves that are easier to see.
Added some frames to help reset the animation by having him hoist the stick back over his shoulder and then control its weight with his legs.
A few slight tweaks to the anticipation of the swing.
Worked more on the anticipation of the swing.
Added in some frames with tighter spacing.
And a couple frames for transitioning into pulling back the stick.
Decided to have the swing cross over the mid point and end with the stick on the other side.
Kind of like a baseball bat swing.
Deleted a couple frames to add more speed.
Stacked a couple frames to add more speed.
When the stick is behind him its obviously too long but didn't get around to fixing it.
Put more time into figuring out which frames should be stacked into multi frames and which should not.
Drew in some more pixels to show speed.
Tweaked some timing by duplicating frames of the stopped points in the animation.
made the stick closer to his body and more vertical when he brings it back around to place on his shoulder.
Tightened up the spacing on the stick as he brings it back around.
Added in some more frames to slow down the part where it is vertical, as objects that move on arcs in perspective take more time as their X changes less and their Z changes more.
Added more inbetween sticks for the blur, changed its shape a bit, turned out pretty messy.
These 2 are exactly same.
Only difference is the one on the left is 6 delays and the right is 5 delays.
The above is fine and mostly working well.
But I wanted to do 1 more pass and add some stuff.
Added in some light hair follow through.
Here I've dropped the animation to 4 delays.
This helps the fast motion pass more quickly and not stick so much visually.
However the difference in speed between 4 and 5 is significant enough that I felt some of the timing needed to be reworked.
But that's a good thing.
It allows more room to create contrast between speeds.
On the left is the same animation as above at 4 delays, no tweaking.
On the right I've duplicated frames at various points to create progressions and contrast in the timing.
Altho I'm not sure I've characterized it correctly there is hopefully something you can learn from it.
There is some charm in your version where he appears to lose control of the stick.
That may be more appropriate for what you want.
Even so the motion could be better.
Didn't mess with the other farmer yet.
He boils in some areas.
Are these by chance rotoscoped?
I am not "PixelPiledriver" so the result is a bit mixed..
There is nothing too special about what I do with animation.
Just relax, practice, pay attention, get comfortable with your tools, use math, try new things, and take your time.
This took me about 50 mins of work + 10-15 on the final edit that I added.