I usually create variations of my design so that my client can select the best. Therefore I have uploaded several designs.. All of my designs have a simple flower icon. Because when the logo become popular you can use only that flower icon to represent you. (Like 'F logo' of facebook)
CH, I strongly urge you to steer away from those logos. If you were to pick it and someone from Adobe came across it, I can almost guarantee you they would sue the H E double hockey sticks out of you. Adobe doesn't mess around with copyright. Ex. #173, I personally think that's the best one on here. Replacing the thin swoops with leaves was very clever, but it resembles the Adobe logo WAAAAAY too much.
I'd just like to emphasize @ColeHogan's point about potential problems about the use of "Acrobat" logo from Adobe.
The use of "Acrobat" logo without Adobe's permission might get you in a legal trouble. Just a reminder.
Take a look here: