[modi_shah]

Hello guys,
I am relatively new to this forum and would like to get any help from all the expertise available here on the forum.
I have been trying some designs with Birch plywood and applying paint on them. See attached photos.
These designs, I have carved on a Chinese router with solid carbide tools.
Now, the problem with the outcome is that after m/cing and painting when I remove the masking tape, some glue still remains stuck on the top surface. What's more is when a try to sand the surface, the glue will stick into the sanding sheet and get spread all over the workpiece, giving it a poor finish. (darker spots in photo)
Now my question is that, is there any way to remove the masking tape and get a clear surface? Or is it this way only that you have to sand really hard to get rid of the sticky pain??

Thanks for your time.

Snehal