Allow us to personally introduce you to level 6 in Pic Combo for iOS and Android. Also, congrats on making it this far. You are a true puzzle warrior. That said, everyone gets stuck from time to time, and with this in mind, here are some answers for your trouble.
Missing any answers? Check out the answers for: Level 1 & 2, Level 3 (Part 1, Part 2, Part 3), Level 4 (Part 1, Part 2, Part 3, Part 4), Level 5 (Part 1, Part 2, Part 3)