User:SteveSims/Storage/UbuntuIconNoViolation

It has four main colors; Canonical's has three colors total.
It has four "children"; Canonical's has only three children.
These children's heads overlap their "arms" on both sides. In Canonical's logo, not only do they not intersect but they do not even touch; nowhere in Canonical's logo do different colors touch, except due to anti-aliasing.
The colors are in completely different positions.
These children are separated by 90 degrees (a consequence of having an additional child) while Canonical's are separated by 120 degrees.
Three of the four main colors used in this logo are not used in Canonical's.
This logo has additional colors, mainly on the outside edge of the large "circle" (see next reason)

where the children's arms meet their "heads." Canonical's does not.

These children align with the directions on a compass; Canonical's do not.
These children's arms are created by dividing a large sixteen-sided polygon; Canonical's are made by dividing a large circle.
These children's heads are much larger than Canonical's, and their arms are much smaller and proportionately wider.
This image transitions much less smoothly to transparent than Canonical's.