I would describe myself as a novice, so take my words with a grain of salt. I, too, auditioned because I too adore this webtoon! As for your voice, I love how mellow and smooth your voice is. It sounds how I would think this character would sound. I feel like you could even add a little more sass. Still, I like it. Also do you know the program Audacity? It's free and very easy to add or delete pauses in your recording with. You might enjoy playing with timing to make a snappy audition reel as you can adjust the timing down to fractions of a second. Sometimes when I record sets of lines I like to look at the wave patterns and ask myself: Can I 'see' the different segments/sets I recorded? If the segments are too close together, I personally like to add a little extra pause between them.