Auto is not a good idea
Yes there are some problems here. Both technical and compositional, lets look at the technical side.
nr1>
You have got some very strong sun coming through, if you look at the shadow of the tree then the shadow is very light so the exposue is a bit over. you can see where the sun hits the ground you have got some hotspots where the leaves look like they are getting melted away into yellow goo buy some powerfull beam. You are shooting agaist the sun more or less, you can see the direction of the sun from the shadow on the tree. try moving so the sun is in your back instead, some expsure compensation might be needed.
nr2> eliminating the strongest hotspots from the composition helps, but you see the leaves in the back are overexposed and distracting, furthermore youre subject is in the shade and is kind of disappearing because of the contrasting lit areas.
nr3>
here you have the lens pointed at the lightsource which is giving some strong flare which is not good, dont point the lens straight at the sun.
nr4>
here you have turned the camera so its not pointing directly at the sun anymore and thus the flare has gone. however, what is your subject, if its the rake against the tree then its being hidden by the leaves too much. now the subject is the leaves and grass in the foreground, not all that interesting and the subject is in shade but hte background is lit, which takes all attention away from the subject. you see the leaves in shot nr 3 look quite nice, because they are lit, the ones in nr 4 are in shadow and dont look all that special.
in general> get the sun in your back, or if you want a backlit shot (emphasizing siluette) then watch the camera angle, dont have sun shining straight into your lens. get your subject lit, or get everything in shadow. have a subject in mind. the pictures of this series that has the strongest subject is nr 2.