Person shortcode image is not round

Hi,

I can’t seem to get my picture round on this page:

http://www.swiftfreeze.com/about/

I am using this attachment file from my Media

http://www.swiftfreeze.com/wp-content/uploads/2014/05/avatar1-e1399911084502.png

the page is split in two (eight column) containers.

How can I center my avatar and info and make the circles smaller but still keep them in the middle of my page?

I am using this code:
<p style=”text-align: left;”>
[row_container dark="no"]
</p>
<p style=”text-align: left;”>
[column width="eight" position="first" ]
</p>
<p style=”text-align: justify;”>
Gaming is my big passion. What makes me even more enthusiastic is how games are made. As a child, I found the three-dimensional artwork of games impressive. Actually I knew then that I wanted to make my work out of this.
</p>
<p style=”text-align: justify;”>
In 2010 I started the study “Game Artist” at the ROC of Amsterdam. While doing my study, I learned a lot such as how to operate different Adobe and Autodesk software. We learned working in a team and this was sometimes challenging but very informative. At the end of January in 2014 I got my certificate of this study.
</p>
<p style=”text-align: justify;”>
Where I specialized myself is Autodesk 3D Studio Max, Photoshop, After Effects and Construct 2. I’m also learning Autodesk Maya as a secondary 3D software.
</p>
<p style=”text-align: justify;”>
My purpose & dream is to create innovative and beautiful games for people to enjoy.
</p>
<p style=”text-align: center;”>
[heading centered="yes" margin_bottom="no" large="no" background="no"]Curriculum vitae[/heading]
</p>
<p style=”text-align: center;”>
[button href="http://www.swiftfreeze.com/shared-files/curriculum_vitae_Piotr_Tekien_ENGLISH.pdf" target="_blank" css_classes="e.g. button_hilite button_pale small_button"]English[/button]
[button href="http://www.swiftfreeze.com/shared-files/curriculum_vitae_Piotr_Tekien_DUTCH.pdf" target="_blank" css_classes="e.g. button_hilite button_pale small_button"]Dutch[/button]
</p>
<p style=”text-align: left;”>
[/column]
</p>
<p style=”text-align: left;”>
[column width="eight" position="last" ]
</p>
<p style=”text-align: left;”>
[person name="Piotr Tekien" picture_url="http://www.swiftfreeze.com/wp-content/uploads/2014/05/avatar1-e1399917628879.png" title="3D Artist / CG Artist" description="Enjoy my Portfolio" circled="yes" twitter="" facebook="https://www.facebook.com/piotrtekien" googleplus="https://plus.google.com/111060910245856703150" linkedin="https://www.linkedin.com/pub/piotr-tekien/3b/285/23" pinterest=""][/person]
</p>
<p style=”text-align: left;”>
[counter_circles dark_circles="no"]
</p>
[counter_circle_item id=1 number="100" title="Efficient"][/counter_circle_item]

[counter_circle_item id=2 number="100" title="Friendly"][/counter_circle_item]

[counter_circle_item id=3 number="100" title="Team Player"][/counter_circle_item]
<p style=”text-align: left;”>
[/counter_circles]
</p>
<p style=”text-align: left;”>
[/column]
</p>
<p style=”text-align: left;”>
[/row_container]
</p>