This is just a random bunch of stuff, I'm starting off with my Master/Ultimate Series Transformers. All I ever do is drawings by hand, and never color, unless I feel it's necessary. Also, not sure if it's allowed, but to see more of what isn't posted up here, then just search UnicronHound on Deviantart
I have more, like the Cassette Players, the Original Leaders, Seekers, etc, I just have to reupload them in my laptop.
Clones Cloudraker, Fastlane, Pounce, Wingspan. Punch/CounterPunch, Quickswitch, Sixshot, Top Spin, Twin Twist, Runabout, Runamuck
Your line work is good, but a lot of these feel kind of wonky in their poses, proportions, and sense of depth. Your more recent ones (Wheeljack and Mirage) seem to be the strongest to me, so keep on improving.