A little too loose...

My daughter wearing the finished sweater

Second time (on top) Third time (on bottom)

Final Time (notice the slope of the shoulder and the reduced width of the sleeve)

See how nicely the sleeve reduced and hangs? No huge gathers to contend with.

  Have you ever started a crochet pattern and NOT made the sample swatch to check your gauge? Normally I don't sweat it, I run by the seat of my pants... but this time it cost me a lot of time. 
  See this sweater I made my daughter? The pattern said to use a L hook, so I did. Medium 4 yarn, same... but after completing one hexagon I realized it was really big. I mean, nowhere to hide behind those huge, gaping holes, big!
  Don't get me wrong. I love a quick, easy pattern as much as the next guy. But this was supposed to provide some warmth and I knew this wouldn't cut it.
  So I played around with hooks until I got the correct size gauge. Turned out I needed an H. Apparently that's how loosely I crochet.
  So I started the next hexagon in the H and whipped my way through that one. 17 rows, check, gauge match, check, fit on daughter, back, check, sleeve, HUGE!
  So back to the drawing board I go. I decided that I'd never be able to reduce the stitches enough to taper the sleeve so I wanted to reduce while I crocheted the hexagon... this kept me up at night trying to figure what would work.
  But finally I figured out something and made a new hexagon. Again (3rd time).
  This time I really liked the reduction of the sleeve at the top, but the bottom seemed to grow... So I did it again and reduced that part too. (4th time)
  Finally I have the finished product that I'm proud of. My daughter loves it and I did actually write down my adjustments so I might be able to do them again. Lol
  I offer a custom made campfire sweater on my Etsy shop. You can choose the size and arm style. Tapered or full (70's like).