def work_life_balance(task: str, mood: str = 'neutral') -> str:
    """
    A function to balance work and fun with a touch of creativity.

    Args:
    - task (str): The task to execute.
    - mood (str): Your current mood. Default is 'neutral'.

    Returns:
    - str: A fun yet professional message.
    """
    fun_emojis = {
        'happy': '😄',
        'neutral': '😐',
        'sad': '😞',
        'excited': '🤩',
        'stressed': '😫'
    }

    professional_advice = {
        'happy': "Great! But don't forget your responsibilities.",
        'neutral': "Stay balanced, don't overwork or overplay.",
        'sad': "Maybe take a short break and come back stronger.",
        'excited': "Channel that excitement into productivity!",
        'stressed': "Take a deep breath, and tackle tasks one at a time."
    }

    fun_quotes = {
        'happy': "Happiness is the key to productivity!",
        'neutral': "A steady pace wins the race.",
        'sad': "Every cloud has a silver lining.",
        'excited': "Ride the wave of excitement to success!",
        'stressed': "Stress is just a step away from success."
    }

    if mood not in fun_emojis:
        return "Invalid mood! Please choose between 'happy', 'neutral', 'sad', 'excited', or 'stressed'."

    return (f"Task to complete: {task} {fun_emojis[mood]}. "
            f"Advice: {professional_advice[mood]} "
            f"Quote: '{fun_quotes[mood]}'")

# Example usage:
message = work_life_balance("Complete Python project", "excited")
print(message)