Here are just a few common mistakes I see beginners make when they
first learn to draw.
1.Reference Photo: If you decide to draw your pet, the first thing you
need is a good, quality photo to work from. When you take your pets photo, get
down to your pet's eye level to take the photo.
I see many folks using
photos where they are standing, looking down at the pet who's looking up at
them. This type of photo tends to distort the proportion.
Also,whether you are drawing a pet or a person, don't use a flash. It's best to
take the photo in sunlight if possible. The flash really messes up the eyes on
the photo. You will be "drawing what you see" so make your photo as accurate as
possible.
Don't work from a photo that's too small. It should be big enough
to see the "whites of their eyes. Here are two excellent sample photos.
2.Outlining With A Pencil That's Too Hard: When you are outlining your
drawing keep in mind that you will be shading and blending the lines you are
putting down. There should not be any harsh pencil lines showing on your
finished drawing. If you are using a #2HB or #3HB pencil to outline, switch to
a "softer" #2B or #7B pencil to do your outling. These softer leads are much
easier to blend. And keep your pencil lines light.
3.Incorrect Proportions: If you are new to drawing I suggest that you use
the grid to get the proper proportion. You could be the best at shading and
blending, drawing realistic hair and life like eyes, but if your proportion is
off, your drawing is doomed from the start. The grid will give you the proper
proportion and it will also teach you proper proportion. After using the grid
for awhile you may find that you don't need it as much.
4.The Wrong paper: Don't cut corners when it comes to drawing supplies.
You have spent a lot of time and effort learning how to draw. Don't ruin an
otherwise great drawing because you wanted to save a few cents on cheap drawing
paper.

"Bristol Board" is the best drawing paper I have found. I use it all
the time. It's much heavier than normal drawing paper. It's also easy to erase
on Bristol Board. Shading and blending is a breeze with this paper. Always buy
the best supplies. That goes for your pencils and erasers too.
5.Un-Realistic Hair: Drawing hair is not a hard thing to do. It just
takes time. Whether you are drawing an animal or a person, make sure the hair
looks real. To draw realistic hair, you have to work in layers. What I mean by
that is you draw the hair, shade it and blend it with a tortillon, then repeat
the process. Keep repeating this until the hair looks full and natural. Use a
kneaded eraser and remove areas of graphite to add highlights to the
hair.
Another neat trick is to use a sharp edged eraser to create hair. By a
sharp edged eraser, I mean one of those erasers that has one end for erasing
pencil and the other end for erasing ink.
Take a piece of scrap paper and a
#2B or #7B pencil. Scribble a very dark area onto the scrap paper. Now, take
the "ink end" of the eraser and rub it on the scribble. It will pick up the
graphite. Use this dirty eraser to create the hair. Add more graphite to the
scribble and the eraser as you need it. With a little practice, this is a great
technique for creating smooth flowing, realistic hair.
6.Scribbled Backgrounds: If you are going to add a background to your
drawing, spend some time doing it. I have seen many wonderful drawings with
backgrounds that looked scribbled. If you are going to draw trees or any other
foiliage in the background, make it look like real foiliage. Take as much time
to get it right as you did with your drawing. For beginners I suggest either
not adding a background or add a simple, shaded background to your drawing.
Sometimes with backgrounds, "less is better".
As you are learning to draw avoid these beginner's mistakes. It will make your progress much faster.