New vessel and some better pics of the last few - advice needed please how do I get the bottom edge( Sides ) flat without rounding it over ?

Click image for larger version.  Name: vessels-2.jpg  Views: 32  Size: 22.9 KB  ID: 9246Click image for larger version.  Name: o8.jpg  Views: 29  Size: 13.5 KB  ID: 9247Attachment 9248Click image for larger version.  Name: o6.jpg  Views: 29  Size: 12.5 KB  ID: 9249Click image for larger version.  Name: l3.jpg  Views: 28  Size: 15.4 KB  ID: 9250Click image for larger version.  Name: l1.jpg  Views: 25  Size: 8.3 KB  ID: 9251