This melt is 18 x 16 cm and has 350 grams of glass in it.The reverse is already super smooth and will require only a little additional work by sandblasting after a dark border is set around the melt and fused to it.
Not bad, but I think a teacher would say, "Could do better". Much larger pot melts are turned into dishes etc but that is beyond my scope at present.
I used all Bullseye glass as this is compatible with itself and will not cause stress fractures when cooling as all the different colours cool at the same rate.