Well, I guess for an old Pikachu, this looks pretty good. For example the wrinkles and Pikachu being hunched over. You did a good job elaborating on Pikachu being old and looking unhealthy. I guess the cigarett was un-needed, but gave the art some more detail. Anyways, as I said, for any old Pikachu, pretty good job.
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XD I love it! The wrinkles drawn on Pikachu's face are very realistic and give it an old appearance. Try to practice a little bit on the clenched fist, though, it's a little deformed. Same with the other hand, although I couldn't do much better.
If there were no crinkles, the pikachu would look boring, but after adding those, the Pikachu looked much better, maybe you should shade it or something...
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