Haha aww cute :] The moon is kind of odd just because you can't really tell what it is, and compared to the earth and the sun it has not that much detail. So try adding some potholes like the moon has? Or maybe just add some other kind of detail.
What Cawthorne meant by "Finish the B" was that the inner parts of the "B" aren't there.. the 2 "F"'s are block letters, but the B is not... That makes the B rather inconsistent with the rest.
Also, the moon doesn't look like the moon that much, this needs work.
the sun looks really cute. i dont like the moon though. i think you should change its color because its eyebrows blend into it. also, if you gave it craters or something it would look more like a moon
I think its time to show our appreciation ;)