It's a good start.

Personally however, (uh-oh, here comes the constructive criticism)
I think you should make the colours a little darker, or coloured it in a little more. A background scene might also help and a cast shadow. It gives the sharpener a sense of..environment? Is that the right word? But anyways, what I'm trying to say, is right now it's just kind of.. there. Like it's just the sharpener.. and space. So basically, to sum up my rant, I think you should just give it a bit more of a setting. Overall, like I said, nice start. Keep up the work!

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Meep?