Interesting... I like it, but it feels like it should be developed a little more. This is the best one out of the three you posted. Are they all part of one large canvas or is it three separate ones? Anyway, I think this could be a really cool abstract collage if it had some more depth and contrast. What you have going on with the question mark is great.

I dunno if you meant for this to be a serious piece of art or just something you threw together to pass the time, just telling you what I see :)