This is two shots of a bamboo bucket structure. A bundle of bamboo in a bucket full of concrete.
In the first shot you can see the fish stacked around the bamboo structure, at the tip of the tree to the left and some just scattered out. Due to several passes in the area you can also see the prop wash trail or what looks like a cloud, the trail shows up good to the far left. The more you go through an area the worst it will get.
This is the same type structure just down the lake without the fish seen in the first shot. In this shot you can see what happens if you dont raise the motor enough by the interference just left of center.
What other structure do you see?
By doing a quick search you cut down on unproductive water. Making a pass with sharpness off will help see crisp shots to lead you to structure to look at closer. Turning the sharpness to low will bring out the fish better but the shot will be grainy looking.