Make more.
You did a great job, I enjoyed it much. Seems kinda like a resident evil type of thing to happen with the monster escaping and such. Anywho the animation was great. It would be great to see more characters and such in the future. I'm guessin that the guy is gonna save that girl? Thus maybe a love interest or somthing. All you need is continue while making sure the plot stays good and make it orginal. Your on your way to a great series.