Hey, just gonna throw in my ideas for your list here. Alarielle is a strong unit (albeit hefty comp penalty), I personally find her better paired with white lions over sword masters. Depending on your formation 5x4 im guessing? you are only getting +3 attacks from having swordmasters but at 1 less strength base. White lions give a stonger base unit since SM deflect shots means nothing when in a unit with Alarielle. White lions are also stubborn, which means you could drop Korhil and spend 150 points elsewhere? If you're gonna put your eggs in one basket I would bump the unit size of Alarielles unit.
White lions with BOTWD and Alarielle: 3+ 5++ against non-magic ranged 5+ 2++ against magic ranged 5+ 5++ against non-magic combat 5+ 2++ against magic combat (all these wards can be boosted with high)
Great eagles, I'd run these bare with no upgrades, swiftsense doesn't generally help much against most warmachines and if you are using them as a bump-stop/redirector then its even more points wasted you could use elsewhere.
Ellyrian reavers - I would run these with just spear. 5 shots after moving just doesn't seem worth it, the bows have never paid off for me personally. Again more points saved to use somewhere else.
Light armour on the archers is next to pointless, 6+ save isn't worth it. You have extra range over most shooting units, if you eventually get hit a 1/6 chance to keep someone alive isn't worth it. Save the 20 points and use elsewhere.
Thats 210 points saved alone between the upgrades from eagles,archers,reavers and korhil... Thats just my 2 cents.