Carefully draw 10% of these upside-down line images at a time. Continue uncovering an addition 10% each time you finish a part. Focus on the lines, shapes, and spacing.
If you notice differences when you are drawing, that it that is good that you can see the differences and you may fix them. Often you are noticing the spacing that is off and you need to be able to see the spacing in order to draw it correctly.
Start by coving up the entire drawing except for two of the horse's hoofs. Draw that little area noticing the lines, shapes and spacing. When done uncover a little more. Take your time, drawing and slowing uncovering each area until you are done.
Horse
Try drawing another horse upside down. Take your time. By uncovering smaller areas and focusing on each little area the lines, shape, direction, spacing, your drawing will turn out better.
'Igor Stravinski' by Pablo Picasso
This is a reproduction of a line drawing by Pablo Picasso of the composer Igor Stravinsky. The image is upside down. You will be copying the upside-down image. Your drawing will be done upside down. Cover 90% of the image and draw 10% at a time. Then move your paper to view 10% more and continue drawing. Do even smaller areas near detailed areas like the face.