构图太正.
Camera                        
Make                          OLYMPUS OPTICAL CO.,LTD
Model                         C3100Z,C3020Z
Orientation                   upper left
X resolution                  72
Y resolution                  72
Resolution unit               2
Software                      v374-75
Datetime                      0000:00:00 00:00:00
YCbCr positioning             co-sited
Image                         
Image description             OLYMPUS DIGITAL CAMERA         
Exposure time                 1/500 s
F-number                      4.5
Exposure program              Normal program
ISO speed ratings             100
Date/time original            0000:00:00 00:00:00
Date/time digitized           0000:00:00 00:00:00
Component config              YCbCr
Compressed BPP                2
Exposure bias value           0
Max. aperture value           3
Metering mode                 Pattern
Light source                  Unknown
Flash                         Flash did not fire 
Focal length                  8 mm
User comment                                                               4.5 的光圈,拍景用小点的光圈, 4.5 太大了.
                                                                       
多使用全手动或光圈优先,使用不同光圈拍同一物体,看结果有啥不同,体会多了,就能灵活应用.
构图一样,多试试不同角度拍.这是数码机的优势可以随便练.