Secondary 1.14. Flat taste. Mash too thin. Next attempt try 1.33 and more aggresive with the choc malt
Based on boiling 6.50 gallonsliters at 1.050 for 40 minutes, this will decrease your wort by 0.67 gallonsliters, bringing your after boil OG to 1.055. You were planning on an OG of 1.055 so you are right on track. Nice job!