Since you said your doing this for practice I thought you might want a few tips. Avoid doing "Character" voices at first. The most natural sounding voice will always be your own. Practice having a clear and proper "Neutral" take. this doesn't mean monotone. It's a phrase spoken without strong emotions put behind it. Most conversations are made up of "neutral" takes. People typically aren't always yelling, crying, or running through a battlefield. Your more "Emotive" takes should be saved for a 2nd or third line delivery. Getting into the habit of saying the line as if you were having a normal conversation is the most helpful. When acting it's very easy to slip into an "Acting" voice. However, things like accents, fun speaking quirks, and large emoting needs to be built on very grounded fundamentals.Your sound is pretty good all things considered. A lot of casting is mostly worried about quality of recordings. So, you got that covered! But, i would love to hear a 2nd recording where you try speak these lines as if they were your own words. With your natural speaking voice. Not what our heads think sounds cool or correct.