Hope you like it, I added a panda in the background with your initials put in front in a cool design. Sorry I couldn't incorporate lime green, I just wanted to keep the all black and white style. Sorry a bit of the ear got cut off because it didn't fit the requirement size for a profile picture, and if I squished it it would get heavily distorted. I changed my profile picture to it for a sec to check it, and you could not see it at all.
Took me 1 to 1.5 hours to make. Most of it was color changing to make it so you could actually so the P and Q, so it didn't blend into the panda in the background (Which is really hard, because the whole thing is in black and white.