Far be it from me to raise questions about semantics or standards, and i must admit that i hate it when semantics, indexing and validating is over 50% of the job, but for a single cel sprite i feel like invite to index and validate that single cel.

You show promise, but to fully dominate any art or discipline there must be a clear understanding that framing the pictures in a way there is no need for another graphic designer on the client's side is part of an illustrator's job.
If a client has got in his office somebody able to index the apple for you, they will simply give the task to their employee.

This very comment isn't mean to be a critic, or at least i'm trying to provide a constructive critic. Let me know if you want to learn how to index an image, usually i don't point out a problem when i don't have got the solution.

I indexed the apple, and since it doesn't take long, i added a EEE version with jumbled shadows, feel free to use them as your own submission.

Green and blue apples!