Judging by the "Busy" cursor (It's hard to tell against a white background), it appears that these are filled in with white. Maybe try some translucent colors. Partly see through that is. (Hint: play around with the alpha settings to do this.)

Another suggestion now that I am seeing the animations in Firefox. Make the round portion of the "Alternate Select" cursor move, not the pointer. This makes sure that users are not frustrated because the most functional part of the cursor is moving around.

2 out of 5 stars.

These are a little too simple. Color would be nice and animations would be nice. Right now they are just white and plain.Also, the busy should be different. You should change it. A circle is not good enough for a busy cursor but if you want to keep it a circle you could have it animated with each frame a different fill color.

3 out of 5 stars.

Me gustan , se que el alternate no sirva ya ... tengo entendido que ya no aparece :P pero deberías hacer que lo que se mueva sea la bolita, sino el hotspot estará en otro lado.. en fin, muy buenos igual