good for a first game
well first of all I have to say for a first game this is somthing you can be proud of. the graphics and style were great. sound effects were also well used.
on the down side the voice acting was IMHO forced and unnececary (especialy considering their contribution to file size). the voices on the buttons were especialy irritating.
game play wise it was simple, easy to understand and fun. if a bit on the easy side. replay value is low though as there is no real depth or chalange (or a replay button after you win :) )
its obvious that effort was put into this, with more practice I believe you can make some great games. good luck !