Your "T" sounds could definitely use some work. Peter, little, patterns...these words need to be overarticulated. Clarity in your words is number one in the VO world. I also believe you could project more from your gut, bringing out your inner voice to truly "fill up the space around you." Speak more from your mouth instead of your nose as well; this could help with your articulation too. So really, practice your articulation going forward and hone that before trying to work on anything else. Good job!