Phineas is a genius boy who makes all kinds of inventions to help others. He is one of the main characters in Disney's animated series Phineas and Ferb. Here's a quick tutorial on how to draw Phineas you might want to use!
Steps
Method 1 of 3: Phineas in standing position

Step 1. Outline the outline of the head with a triangle
Cartoons are usually created by drawing simple standard shapes. Especially if the cartoonist is going to draw the head.

Step 2. Sketch the outline of the eyes

Step 3. Sketch the smiling mouth

Step 4. Sketch the outline of the hair

Step 5. Sketch the outline of the body

Step 6. Sketch the sleeves, arms and hands

Step 7. Sketch the legs and feet

Step 8. If you think the mouth looks a little too happy, erase it and reapply
But it's still a cartoon, so feel free to exaggerate. Practice a lot on the facial expressions once you get used to drawing his face.

Step 9. Start working out the head

Step 10. Start working out the ears

Step 11. Continue working out the eyes
Just draw in two overlapping ovals as eyes.

Step 12. Draw ovals for the irises

Step 13. Start working out the hair

Step 14. Continue working out the shirt

Step 15. Continue working out the sleeves

Step 16. Work out the arms and hands

Step 17. Work out the shorts

Step 18. Work out the legs and feet

Step 19. Erase the sketch lines and fill in the drawing with basic colors

Step 20. Draw the background
Method 2 of 3: Phineas is excited

Step 1. Sketch a triangle for the head

Step 2. Sketch the outline of the eyes, mouth and hair

Step 3. Sketch the outline of the body

Step 4. Sketch the outline of the hands and feet

Step 5. Start working out the shape of the head

Step 6. Draw the mouth

Step 7. Work out the eyes and head

Step 8. Continue working out the clothes

Step 9. Work out the rest of the drawing

Step 10. Erase the sketches

Step 11. Color the drawing

Step 12. Draw shadows and the background
Method 3 of 3: Phineas in Standard Pose

Step 1. Start sketching his head
Draw a twisted triangle as in the example. Sketch guides.

Step 2. Draw 2 ovals for the eyeballs and 2 circles for the eyes
Don't forget the eyebrows. Sketch a smile and a small, semi-circle for the ears. Sketch the messy hair.

Step 3. Draw his body/torso in the shape of a bottle (he walks a little lanky, so let's adjust that)
Draw the thin arms and legs, hands and feet.

Step 4. Sketch his shirt, shorts and sneakers

Step 5. Work out the line drawing further and erase the auxiliary lines and sketch

Step 6. Color the drawing
Do not forget to draw the stripes of the shirt.