ID: screengrab of a list of tips and tricks for the game Pocket Build, it says:

• When making a circle with walls or fences, make a line in the middle first as a guide then proceed to place the fences while changing the angle one notch at a time. The change in angle has to be consistent for it to be a perfect circle.
• When you place a fish, you can scale the number of fish that appear but not their size.
• Since People and Goblins don’t disappear once they die, you can use their bodies for decoration.