It's Flute Cop!
lol, this is fan art for the webcomic Axe Cop... featuring the cop with the most physical changes in the series.
Flute Cop, the guy with the mustache, plays a Recorder, and joins axe cop to kill some Dinosaurs, but he ultimately gets dinosaur blood on him and becomes Dinosaur Soldier... then later joins a fruit stand and becomes an Avocado... before gaining a unicorn horn from a unibaby to become Uni-Avocado Solider.
lol, it is silly... but I like how it came out... and I may paint more things in a similar manner.
Flue Cop, Dinosaur Soldier, and Uni-Avocado Solider are all from the webcomic Axe Cop [link]
and are created by a 5 year old, and draw by his 29 year old brother... it's GREAT! I recommend it.