Hello,
good work, we liked the concept of #12, 24 and 27 may we could use some colors coming from inside the dimond, try a light of different colors as of fruits like lime green (as of from the skin), yellow like pineapple, orange like papaya, blue like blueberry, red like raspberry, etc. to see how it looks ok, also good work with the letters and name on #7, may we could try also with the words a different letter case some minimalistic like this one but may be thicker and may a type of script to see how it looks ok,
good work,
cheers