This is a rather simplistic cursor set.
To improve on the static flat cursor you might try adding a bevel for dimension.
You could also add stripes or other design elements to improve on the over all appearance.
With some effort I was able to discern that the text bar added to the link select cursor simply read "link".
Precision select is a cursor that should enable the user to precisely select an area as small as one pixel. I find it much easier to utilize a precision cursor that has a centered clear window so that I may view the exact pixel I am selecting.
Yellow is not an easy color for cursors as they could be hard to view on a light background. When choosing to make yellow cursors the creator should anticipate such and design the cursors accordingly.
This is a nice effort but there is room for improvement in this cursor set.