1) White is tough to print with. As you know
2) Your skirt lines look to be lifting up...are you well calibrated with the Z axis?
3) Like Labern says, clean the tape with rubbing alcohol (breathe deeply too, enjoy!)
I was trying to print the front sight of the Star Wars blaster piece, which is shaped like a W. I used the line support and it was getting knocked over because it was so thin...and the part was so small.
I looks like you have some stringing going on. If your support is lines the oozing can knock it over.
On things that need quite high support I use grid, It is less likely to fall or break. You could also try adjusting you retraction settings or printing a bit cooler to help stop oozing or stringing.
The support looks like its not stuck to the bed very strong? does it peel off really easy? you may need to clean the bed with alcohol as the blue tape has a wax coating on which needs to be removed.
You could also adjust the bed up a bit maybe.
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