Looking at your shelf buttons i see you are learning car modeling from the eclipse car modeling tutorial.
overall comment;
try to get some smooth edge flow so no sharp corners and keep an eye out how you place the edges/ loop splits keep in mind how everything will be connected in the end.
try to avoid following the tutorial mindlessly think on the things the tutorial guy says and does, knowing why he does things is sometimes more important than how he does things
your model looks very good for someone who's (relative)new to maya

kutgw