A number of things in that picture jump out at me.
View attachment 1716427598
First, as RRR mentioned, the motor mount brackets bolt to the rear of the engine "ears" (yellow arrow) not to the front (blue arrow). Second, that insulator (red circle) is waay too thick and is making the engine sit too high, possibly contributing to the clunking you are experiencing due to something hitting because of the mislocation. The factory insulator is shown below:
View attachment 1716427599
Notice how thin it is compared to the one you have installed.
For that matter, something doesn't look right with the mount brackets themselves... B/E body brackets?
A body brackets shown below (pic stolen from a killerslant ad):
View attachment 1716427604
In summary, the incorrect insulators cause the engine to sit too high, the brackets on the front of the engine mount ears are forcing the engine rearward, the wrong brackets are forcing the insulators into a twist (check the red circle again), and the clunking and steering shaking could well be caused by the engine now hitting things it shouldn't- steering column, tie rod ends & steering center link, etc. Another thing to check would be your transmission mount- with your engine being forced excessively rearward, that would put your tranny mount into excessive tension and could have failed; causing clunking and could easily feel like a steering shake...
By the way, is that a crack in the engine mount or just a hideous factory weld (green arrow)?