2 Under the shadow of her even brows, 3 Working belgards, and amorous retrait,

belgards > loving looks (WUS) retrait > portrait; hence: countenance

4 And every one her with a grace endows: 5 And every one with meekness to her bows. 6 So glorious mirror of celestial grace,

So > [Such a] mirror > reflection [of perfection]; hence: paragon of beauty (cf. 106.15:6)

7 And sovereign monument of mortal vows,

sovereign > (A direct reference to Elizabeth)

8 How shall frail pen describe her heavenly face, 9 For fear, through want of skill, her beauty to disgrace?

disgrace > disfigure; disparage

203.26

So faire, and thousand thousand times more faire
2 She seemd, when she presented was to sight,
And was yclad, for heat of scorching aire,
4 All in a silken Camus lylly whight,
Purfled vpon with many a folded plight,
6 Which all aboue besprinckled was throughout,
With golden aygulets, that glistred bright,
8 Like twinckling starres, and all the skirt about
+Was hemd with golden fringe+