I finally finished my TMNT project. All four Turtles done. I'll be fine tuning these over time but have my basic format and look for each Turtle down. These are 3.75 scale. The cool part about these customs is that each one incorporated parts from 4 different scales and work with Rocksteady and Bebop TMNT Classics.

Head - MU Hulk (Different for Each)
Body - MU Hercules
Feet - 2.5" TMNT
Shell - 4" TMNT Toon
Forearms - 5" TMNT Movie