Try to represent now a special marking on the circle, choosing the Pen Tool and the command Make Selection. Then paint this part with the usual instrument (Gradient Tool).



Represent on the circle now a visible flare, selecting the Brush Tool with smooth edges:



Then make the corrections on its brightness and contrast, using the next options: Image ? Adjustments ? Levels (ctrl+l).



Continue with the Blending Options window and set the next adjustments in it:



That is what we've got:



Select now again the Pen Tool and Fill Path command to represent a stylish eagle around this circle: