It looks like you've got a solid language learning plan in place. Let's break it down:

**15-minute daily routine:**

1. **Graded Reader with Audio**: You'll spend 5 minutes listening to a graded reader, which is a text written specifically for language learners at their level. This will help you improve your reading comprehension and get familiar with the sounds of the target language.

2. **Anki Flashcards**: For the remaining 10 minutes, you'll review Anki flashcards. Anki is a spaced repetition system that helps solidify vocabulary in your long-term memory. You can create digital flashcards using the links you provided (PRIMAL.net).

**Why this routine works:**

1. **Contextual learning**: By listening to a graded reader with audio, you're getting context and a chance to hear native-like pronunciation.

2. **Vocabulary building**: Anki flashcards help you focus on vocabulary acquisition and review previously learned words.

3. **Consistency**: A daily 15-minute routine ensures that you stick to your language learning goals.

**Tips to enhance this routine:**

1. **Increase reading time**: Try to gradually increase the time spent listening to graded readers, aiming for 10-15 minutes per day.

2. **Mix up Anki content**: Periodically review different categories or themes on Anki to keep your studying fresh and engaging.

3. **Review regularly**: Make sure to review Anki flashcards regularly, ideally within a few hours or days of initial learning.

Overall, your routine looks well-structured and focused on vocabulary building through a combination of listening and spaced repetition. Keep it up!