Good man! I just didn't want to force advice.
Your silver dry-brushing on Trailbreaker is rather messy. There are possibly two reasons for this:
1) silver over black is rather too contrasting. An undercoat of very dark grey is often better.
2) too much paint on the brush when you added the silver. Dry-brushing is a subtle technique that adds a very fine layer that doesn't quite cover up what is underneath. You should wipe almost all the paint off on a cloth or paper before brushing the figure - it's better to add too little and need to add more than to do too much and mess it up. Sometimes three or four coats are required to get the finish you want!
Rather than starting again you could improve the look of the silver parts on TB by dry-brushing a slightly darker silver over the top. Either buy a darker silver (eg boltgun grey from Games Workshop) or find another small container and add a dash or two of black to some silver. Then dry-brush VERY small amounts in circular motions. You should find it blends in nicely, makes it much smoother in appearance yet retains the battered look. If you find you've made it too smoothe for your taste you can dry-brush bright silver over the top again to add a touch of damage. This is exactly what I did on Megs here:
viewtopic.php?f=159&t=47910 PM me if you have any questions, although I'm no expert.