The reason nobody responded is probably due to the fact it is yet another picture proving nothing except it is indeed a paro. To be honest, I can understand why people give up on telling the same story (“wait for them to show colour/we need better pics/probably a bintan-form”) everytime.
When you have a question, it often saves a lot of time to look through older threads. You’re not the first one with a paro, so you’re probably also not the first one with a question considering determination. Not rarely, your question has been answered before.
In conclusion:
Determination is impossible from these pictures. All I can do is wish you luck in keeping and breeding, and welcome to the project!