My work does not exist for you to use as a "base" for anything. Do not edit, trace, copy, re-post or in any way reproduce my work.
It is disrespectful to me and to the time I put into it. It also upsets me; it is not flattering.
And yes I will find out and I will notice.
Save yourself the trouble - it's way more satisfying to have something to show for yourself that is 100% yours!
If you desperately need something to reference, take a friggin' screen shot from a Digimon episode. That way you're not copying the official profile image like everyone else, and you're leaving fan-work alone :/