I love mangoes! Cute set. imo the red is a bit too red to be a mango, though.
I feel like there's a lot of potential for novelties for this set, have you considered adding a new design so that the 1.25u and 2.25u keys are different?
e.g. showing the cut half mango next to a full mango, a mango with a cute smiley face, a mango tree, mango slices
Also, do you have an interest check form?
edited to fix typo