Frost 7.3 casual player

I am a very casual player, and am looking for critique for the most “efficient” script/macro. Please feel free to suggest fixes for what I have wrote. I am sure this is modifications of others scripts, but I haven’t modified them in months, so I won’t remember the originator.

Here is what currently use:

Sequences['frost'] = {
  SpecID = 251,
  Author = "ME",
  Talents = "3,2,1,1,2,3,1",
  Default=1,
  MacroVersions = {
    [1] = {
      StepFunction = "Sequential",
      KeyPress={
        "/targetenemy [noharm][dead]",
        "/cast [combat] Obliteration",
        "/cast Pillar of Frost",
      },
      PreMacro={
        "/cast Chains of Ice",
        "/cast Remorseless Winter",
      },
        "/castsequence Obliterate, Frost Strike, Howling Blast",
        "/castsequence Obliterate, Frost Strike, Obliterate, Frost Strike",
        "/cast [combat] Remorseless Winter",
        "/cast [combat] Howling Blast",
        "/cast [combat] Obliterate",
        "/cast [combat] Frost Strike",
      PostMacro={
      },
      KeyRelease={
        "/targetenemy [noharm][dead]",
      },
    },
  },
}

Sequences['Fheal'] = {
  SpecID = 251,
  Author = "ME",
  Talents = "3,2,1,1,2,3,1",
  Default=1,
  MacroVersions = {
    [1] = {
      StepFunction = "Sequential",
      KeyPress={
        "/cast Icebound Fortitude",
      },
      PreMacro={
      },
        "/cast Death Strike",
      PostMacro={
      },
      KeyRelease={
        "/targetenemy [noharm][dead]",
      },
    },
  },
}

FYI, I will be submitting the same request for critiques for each class/spec I play. Thanks!