I'm not on my editing screen, but the colours of 2 and 3 look WEIRD, especially 3.
2 is the most interesting with the lead lies of the slide & the towers in the distance.
1 has a bit too much going on, and the eye is pulled by the couple, the overhead cablecar, the cotton candy stand.
3 feels like there's too much in there, and can't decide between being about the fair or the skyline.
Hope that's useful.
They lack focus on a primary subject or you're too far from it.
The Canadian National Exhibition is a riot of color. sites and smells - a veritable treasure of photo ups. However i find in mid-daytime the colors get washed out from the bright sun.
I take 90% of my photos there after dusk.
Check out my gallery of amazing CNE photos: https://flic.kr/s/aHsiQTn9Sa