Frankly, I like both of their designs. They do look older, and their clothes is like for a teenagers, especially the Female.
For the Male, I'd definitely choose him. Sure, he's the standard typical protagonist. I think he kinda resembled Brendan. Simple clothes but the style is awesome. I'm just surprised about his hair. Seriously, doesn't anyone feel like cutting it? We have spiky hair (Brendan), over the top bangs (Gold) but his hair was really unexpected. Isn't it a little too long?
For the Female, I was like wtf. She's completely different from the previous girls. Compared to Lyra, who's style is really, really childish (Check the bow on her hat), this protagonist's style is off the hook! Punk is not dead! Out of all female protagonist, she definitely stands out. Her hair, is like, on top of her hat! Her sprite's hair was like, also big. It's going to be funny choosing her as a choosing her as the player. It's kinda like Lucas with the beret. Extreme. Her shorts are also like, wow. May's biking tights is sooooo Gen 3.
Overall I'm kinda please with the design. If I had to guess their age, about 15-16? I mean, what parent want their 14 year old daughter going around the region with shorts that short? Can't wait for the rival although I don't have high hopes. Rivals are usually plain looking.