The current logo of World Transhumanism Association:

Other versions of the logo: http://transhumanism.org/index.php/WTA/logo/

A professional critique (PDF) of this logo was done by the kind folks at Code-Interactive.

Overall rating: 5/10.

Comments

• The overall effect is good and I assume it represents the organization well being showing an expanding, elevating Earth.
• The font is minimal. Try altering it to make the logotype unique to your organization.
• Good color scheme, though you should try to reduce the number of colors used.
• The triangles on the outside of the logo look just like that: triangles. To incorporate them more into the logo, try giving them rounded edges to match them with the interior globe. This will create a more unified, and professional look.
• The logo requires the globe for its effectiveness, but if this logo were in two color (black and white), we would lose the continents. It is our suggestion to enable two-color production by removing the WTA from the globe or incorporating it in the oceans somehow. This would require the globe to be larger and the starbust to be smaller, which would solve a porportion problem as well.
• Gradients are pleasant effects, but the logo should be recognizable without them. Try designing the logo without gradients initially.