If you are intending to make this a competitive list, I would recommend the following changes:
For the Eldar
CAD, change the Warlock to a Farseer on a bike and change the troops to 2x Scatter Bikes (if you don't have bikes you are doing Eldar wrong

). Drop the Wraithlord in the
CAD.
For the Wraith Host, I would give the Wraithlord Scatter Lasers, and change the Starcannon to a Scatter Laser on the Wraithknight. I would then drop the Wave Serpents altogether and add a Dark Eldar
CAD...
Dark Eldar
CAD, take a Lhamean (cheap 10 point
HQ), 2x5 Warrior units and then take 2x Raiders to deepstrike the D-Scythe and D-Canon Wraithguard in.
I would also consider taking a skathach wraithknight with DeathShroud weapons to deal with infantry.
Overall, the list would prob be around 1547 points so you can make the Wraithblade unit larger (recommended) or drop them for a 10X unit of Wraithguard and swap the Lhamean for a
WWP equipped Archon to drop your 10X Wraithguard somewhere useful without scattering.
Lotsa options, you can even add Iryllith (Shadow Spectre phoenix lord) to the list to give a unit hit & run instead of having a Farseer in there.