One: Don't use default paint colors
Two: If the drawings don't look in any way related to the pokemon, try again
Three: Put more than five minutes into the drawing
The Pinsir prevo, looks like a crude heart, and the Spinda prevo looks like a blob. Think about it- do they really look like something you can be proud of? Practice more before drawing another, drawing is hard, but no excuse for not trying :/