Wow
Okay, Where to begin. The sound quality was bad, the sound itself was repetative and seeemed very off from the mood of the game(if you can actually say that game even had a mood). The gameplay was insanely repetative and, yes as others have said, if you just click the red option it is always right. The picture you use is repetative, and was booring to start with. All said I can't give this any stars. I can however make a few suggestions.
1. Use different images, like cartoons or scenes. Something people would want to look at in the first place.
2. Make sure your images are decent quality and sized appropriately. Due to sizing and quality differences I would have said that all of what you have in there is different. In fact when I first played it I made that assumption, though that was while I was still giving the game the bennefit of the doubt.
3. Use appropriate sound. If this game were to have an overall ambiance it would be of thinking/puzzleing. You should use some sort of thinking type music (if the background noise you have on there puts you in a puzzleing mood, I guess it is a question of taste, I would take cues from the theme music of like jeopardy/millionair though it would be a mistake to use a well recognized theme. Make sure the quality of the sound comes through as good as well. Remember no sound is better than bad sound.
4. Always include an option to turn off the music/sounds. Especially in any sort of game you spend more than a couple of minutes on, people can get annoyed fast even if the music doesn't suck (persay).
5. Find a better way of lining up your images, offset can work in some cases, but in this case it just looks lazy.
6. Rather than using the same images over and over, use different images, with more subtle changes as the game goes on.
7. Find a way to score the players. Weather it is by time or by # of correct answers, etc. Finishing the game doesn't have to be the only reward.
So yeah. I'm harsh I thought it sucked and gave you zeros across the board. Keep trying though and do try to take my suggestions before you try again.