# If it pleases the king ... in his eyes ... before the king ... in his eyes

"If it pleases you, the king ... in your eyes ... before you, the king ... in your eyes" 

# if the thing seems proper before the king

"if the king thinks that what I ask for is proper" 

# I am pleasing in his eyes

"he is pleased with me"

# revoke

take back and make of no effect

# the letters

You may need to use a word for written instructions that is more general than "letter" so that the reader does not think that these documents were about only personal matters.

# provinces

A province is a large area into which some countries are divided for the purposes of government. See how you translated this in Esther 1:1.