I'm intending to get back as soon as I can, Virginia. Of course I could answer all your questions, but there would be no need to post another story, then, now would there?
I actually think you ended this section at just the right spot with one exception. In Part 2 Martha indicated that Lana had died and it seems odd to have ended Clark's side of the story without wrapping that part of the story up that is unless it was somehow tied to Clark's apparent injury in the last of the flashbacks (although it seemed to me that the head of Lex's axe came off during a swing and hit Clark).
I spend some time thinking about that problem. I finally decided against adding a flashback that shows how Clark learns of Lana's death. It seemed odd to conclude one story line and leave the other unfinished. After all, we all know that Clark will survive the explosion for obvious reasons. Unless of course Lex had planted kryptonite in it - then both Clark and Lois are dead and there's nothing left to tell.