Awesome, addicting game. I'd really love to see it expanded if you ever found the time, because the potential's definitely there. As it stands, it's a pretty good "3 lives, get a high score" generic game, which it does really well. However, if you added something like an upgrade system and unlimited continues, it could really feel like a progressive game.
Big upgrades would kind of ruin the whole "kite and poke" mechanic, but putting in stuff like double tapping a direction shooting a projectile that way would add some possibilities with strategy and whatnot.
In summary, it's good for what it is, and really good for a first submission. Apart from that, I think it's a great basic idea for a game and you could really expand on it and make it shine, and I encourage you to do so.