Wood chopper holding the axe the wrong way
 Maybe a hint of a stem and leaf for the apples
 Apples too evenly spaced out
 ladder for apple picker in the tree
 tractor guy needs boots, barefoot machinery operation  is tsk tsk tsk
 beekeeper looks like she is not wear netting, I think it is okay cover her face a little bit
 the chicken needs some chicks
 bird house builder, switch to a smaller hammer, a few more tools and supplies on the table would be nice.. hey maybe even this book (he is using as a reference, right?)
 pizza needs to be foreshortened a bit, right now it looks like a giant chocolate chip cookie
 a bit of smoke coming from the pizza oven?
 Watering gal needs a few more veggies or flowers.  right now it looks a bit like a failed crop with one head of lettuce 
 There are smudges and left over pixels from copy and pasting (I am guessing)  throughout the title ...
 add someone reading a book.. this book or any of the others Paul wrote ...
 framing and door need a bit more character
 chicken coup could use a bit more detail (show boards?)
 as per usual.. YMMV!  Thanks for asking us though!