These are both non-transforming customs.
Here's a list of the modifications done to Sentinal Prime:
- Head on ball joint
- LED lights swapped from yellow to bright blue (both head and fire truck light bar)
- Improved ankles for more dynamic poses
- Rebuilt from scratch new chest
- Added heels for more dynamic poses
- added hoses and other small details
- removed back kibble
- built system to attach shield to Sentinal's back
- realistic wear/tear and aging on his paint
- realistic battle damage
Full photo gallerys (and there's a lot) can be seen :
http://www.flickr.com/photos/accardi1/sets/72157626952844695/
or
https://www.facebook.com/pages/FrenzyRumble/277523541966









