@KejmurAdd Gender and Age (2,000 - 12,000 years old) fields.
Just for clarification you have no other appearances right?
Personality: How does your character feel about other Mortals and Deities? What about Jeno's banishment?
Preferred Field of Magic: Just for clarification, is "mind magic" like causing confusion and illusions, or is it like mind control and rewriting memories and things of that nature?
Pocket Dimensions And Home: Is this pocket dimension her home? What is in this pocket dimension?
Fighting Style: What would happen if she was in close combat?
Biography:
Does the sentence, "Since the creations of first dreams (around 4,000 years ago) Islena knew that she always tried to provide something special, something that would present alternative to the standard 'cruel' world." indicate that Islena is 4,000 years old? Also dreams should have been present before Islena (or any god) was born.
"She also decided that control over category like hope also helped to support her main goal" You can't choose your own categories, but you may work towards them and "evolve" in that way. This would take a long time to do though.
"Clearly happy with her choices she also realized that exist certain type of magic called illusions. Intrigued she grasped the main objective" Is this implying that you did not know about illusion magic and worked your way up to it? (clarification)
What species tends to worship your deity? Are any views the worshipers hold incorrect? (clarification)