Needs plenty of improvement
You at least got the Snake gameplay down good, but other than that, the game's pretty repetitive and uninteresting... no music, no sounds, lame graphics... also, the text needs some reworking. The instructions at the beginning are in small black letters that are halfway impossible to read when on top of the big snake background picture. The "Game Over" text not only has the same problem with readability, it actually insults the player's skill. The one thing worse than a bad game is a bad game that tells you you suck.
If you fixed it up, made it more unique and original, added interesting graphics and sound, and made the text more coherent, it'd probably be a decent game. As it is, though... definitely not too good. Good luck making it better next time, though.