[ANSTHRLD] Maintaining vs. Sustaining: New Question

[Castellana Donea]

In the case of the Conflict check I just asked about (you will have to forgive my ignorant question, I am having a blast at this, but and still relitively new at it) ...
 
question 1: would it be inapropriate to have a bear sustaining a violet?
 
question 2: can you have a border, an orle, or a tressure on a fieldless device?

YIS,

Lady Castellana de Andalusia
known as Castellana Donea
(Kass-tae-yanna)
Protogee' to Syr Burke Kyriell MacDonald
Rom Bara of House Patrin Or
Wiensenfeuer's Deputy Herald
Kingdom Armillary Pursuvant