Pretty Good
I like your graphics style, and the controls are quite good, some of the puzzles are a little challenging though.
Walkthrough
level 2: just hold down left.
level 3: keep going right, bounce on the disc then drop off and go right so you dont hit the disc, then go right.
level 4: get the green off the palm leaf, get a run up going right and jump at the top of the hill onto the platform. Jump up the other platforms, dont get any other colours at the top one run and jump off and click whilst flying to get it.
level 5: go left
level6: go right, get the green off the tree, jump the the boulder the climb the rest of the mountain, get the red off the nut the roll the snowball down the hill, get the green again and jump up the snowball to get the object.
level 7: quickly get the red before the snowball comes, block the snowball from going down, the at the tree get the green, jump on the snowball and get to the tree.
level 8: get purple and speed across the gap, get the green and jump up the tree, ingoring other colours. jump onto the platforms until you reach the one with the snowball. get the red while on the snowball platform, push the snowball onto the lower platform. while on red, speed across onto the snowball and onto the next platform until you reach the sheep one, push the sheep away and get the object.