No woman is as big as the turtles so never make yourself as tall as them. Unless its a made up OC, thats imagination there.
Leo is 6'4 WHICH is 2 inches shorter than Raphael who is 6'6.. WHO is shorter than Donnie who is 6'8 going on 7'0 as an adult I believe in my personal opinion. Idk how tall they are as 24 year old adults in 2023. I believe Michelangelo is 6'2.
They are wider and chonkier than the normal Human Man. Their heads are not shaped humanly either. They do have an egg shape to them in the back of the skull.
They have HUGE feetz! So when drawing remember this.
Leonardo has a nice prominent beak to his facial structure, While the others are more smoother. Raphael and Mikey being the smoothest. Raphael does have more of a soft nose bump. Thats why Raphael and Mikey have "Olden Mouth Lines" around their mouths from their noses cause they have more softer features being flatter. More human.
EYES: Leo has more doll shaped blue eyes. So they are big eyes. Mikey has this as well. Raphael has handsome Siren eyes. Donnie is more almond I would think.
Leonardo unlike his other brothers sports a special kind of teeth when he talks and smiles. His TWO front teeth are the biggest and adorable. The turtles scars are a given obvious. They do have multiple scars; so look for them.
Raphael has the poutiest lips in the drawing process, His bottom lip being the plushest.
THEY ALL HAVE CLEF CHINS. So they are all handsome :)
AS you can see in the image above, Leonardo for example has his neck tendons coming from the back of his neck like most men are built but theirs are super large cause of them holding their shells up. The SHELL Drawing starts in the middle of the head when drawing them. Donnie and Raphael have the tallest shells, so they would be more near the top of the head when starting the shell.
Michelangelo has more color to him out of them all. He actually has Orange lines drawn through out his shell and has a heart birth mark on his abbs.
Their nostrils are placed differently.. please note that. Leos is the widest set. Raphael is the closest Set.
They're hands are big.. Everything about them is larger in size to any human. So please keep that in mind. They are not built for the anime sketches you find. You need to double or triple that.
If you are 5'5, you are most likely to the the first rack of plated abbs on the boys, You would be at Donnies waistline if thats true.
If you are 5'2.. much shorter and daintier compared to them for sure.
I wear heels alot so I am 6'3 most of the time, So when I make pictures of myself with them, The height is rather false cause Im 6'3 in heels. So I would be to Leo's chest plates or lower shoulders cause of that. If I was my normal height, which is 5'7. I would be at his Lower or mid Chest pectorals. ( I wear 5" - 6"platforms )
I hope this helps anyone who has drawing questions on where to start.