The badges for RFA Sir Percivale, RFA Sir Geriant, RFA Sir Galahad and RFA Sir Lancelot are fine
You're right about the trees and the hand. In fact they are copy paste from a jpg picture so they need some clean up and manual drawing. The badge for HMS Scott is a no go. To much copy paste from
VECTOR-IMAGES.COM. But then again it's a good base for making a good badge. When you do that, please avoid the inner shadow which is a trademark used by Vector-Images but not in the original badge