So I marked everything I see wrong with his map, technically. The key word here is what I see. Some others aren't as anal as I am when it comes to these things and I admit I get to anal sometimes as well. Im just showing you how I usually look at maps in general when mapping. o:
Red: Same object makes creates a line.
Yellow: Same size object creates a 45 degree or straight line. Usually with this one, it is the matter of making it farther apart. Its not a big deal when you have the same size object create a straight or 45 degree line, unless the objects are too close in and/or don't have anything significant blacking them.
Green: You have too many of the same objects or same sized objects lumped together. Spread them out.
Blue: Usually when I map, I tend to make sure I am not able to create any equalateral triangles or isoceles. This is me being somewhat anal, but if you actually look, you can see the trianglke it creates. To avoid this, move the object or use a smaller, less bold object. Try to shoot for scalene.
Purple: Me being anal about using too many different types of objects. If I were mapping, I would replace the purple flowers with smaller, purple bush flowers and totally get rid of the red ones. o:
P.S. I meant to use a yellow line instead of a red line on the bottom left corner.