My Very First Sweater Attempt

I have finally moved on from the world of scarves/mittens/socks and am attempting to knit my very first sweater! I'm making it for my nephew, Carter. The pattern I am using was found on the Ravelry site, and is called "Trellis". This is what it will hopefully look like when it's completed (I'm about 80% done...just finishing up the sleeves and then all I have to do is make the collar and sew the pieces together):