Those screenshots are kinda...boring. It isn't really entertaining to have the player run across a field in a one-tile-high corridor where you can't jump because there are munchers right on top of your head. Also, the same thing for the second screenshot. And, for the third screenshot, if you plan on keeping it like that, then I would highly suggest variating the height of those pipes, so it doesn't look so flat.
But I really suggest you replace most pipes with ground/upside-down ground, and then you can add slopes, bushes, fruit, enemies, coin, etc., to not make the level boring. It looks really far from entertaining right now...Sorry.
EDIT:
Originally posted by Creator of threadIf you call gaps that trap you, I'll be creative!
No no no no what the hell. Please do not do that. That is really bad game designing, having places where you can get stuck. Again, please NEVER do that.