In Thee Rejoiceth also known as Epi Si Harri is a tempera and gold leaf painting by Theodore Poulakis.

[1] Poulakis version of In Thee Rejoiceth was inspired by an earlier work created by Klontzas.

Another version of a similarly themed painting was created by Francheskos Kavertzas named In You Rejoices.

The hymn is as follows: Ἐπὶ σοὶ χαίρει, Κεχαριτωμένη, πᾶσα ἡ κτίσις, Ἀγγέλων τὸ σύστημα, καὶ ἀνθρώπων τὸ γένος, ἡγιασμένε ναέ, καὶ Παράδεισε λογικέ, παρθενικὸν καύχημα· ἐξ ἧς Θεὸς ἐσαρκώθη, καὶ παιδίον γέγονεν, ὁ πρὸ αἰώνων ὑπάρχων Θεὸς ἡμῶν.

Ἐπὶ σοὶ χαίρει, Κεχαριτωμένη, πᾶσα ἡ κτίσις· δόξα σοι.

All of Creation rejoices in thee, O full of grace the angels in heaven and the race of men, O sanctified temple and spiritual paradise, the glory of virgins, of whom God was incarnate and became a child, our God before the ages.

In the upper portion, the geometric representation follows a circular arrangement featuring miniature scenes.

In the lower-left portion, a huge red angel bearing a sword is approaching sinners.