What do these stamps mean?
my guess:

the first seal is "臣景昭"

the second one is "x畫",

the last one, 


ｅｃａ
ｆｄｂ

the picture shown top 3 (ｅ, ｃ, ａ) &amp; half the lower 3 characters (ｆ, ｄ, ｂ).

ｅ: the left component is 人 (radical 9)

ａ: the left component is 止 (radical 77)

anyway, here's the enhanced picture: