We normally say that "Something or someone is reminiscent of Y". We do not say "You are reminiscent of Y". Why not?
To say that something or someone is reminiscent of Y is to say that the thing or the person would remind anyone and everyone of Y, which is not the same as saying "It reminds me of Y* or "She reminds me of Y" or "You remind me of Y".
The thing or person in question has characteristics so similar to Y that anyone would be reminded of Y. I (the speaker) am a person, so I am reminded of Y, true, but so would you (my conversation partner or reader) be reminded, and so would the person-on-the-street be reminded.
It is the impersonal construction together with the direct address ("you") which makes the following sound odd:
You are reminiscent of your father.
You remind a person of your father. Since you, too, are a person, you would remind yourself of your father.