Wait, so this isnt your drawing? Over the series you have most definitely presented these drawings as if they were yours, with no source or name to suggest otherwise! Done quite on purpose.
If anyone is still in doubt, view this post:
https://steemit.com/art/@martdesing/realism-owl
Where @martdesing has removed the original creators name from the picture
Flagged for trying to steal anothers work, shame on you!