Step one:
First draw two arcs, a bit like a "v".
Step 2:
Then draw two semicircles on both sides to connect them.
Step 3:
Draw a semicircle on top to form the pulp of the lychee.
Step 4:
Then draw a square branch below and draw a small arc texture on the peel.
Step 5:
Besides, you can also draw a circle.
Step 6:
Just add square branches and short arc textures.
Step 7:
Finally, apply a nice color and the lychee is ready.