If you're looking for "splashy" (faster, more "virtuosic" sounding works) for SATB from the Renaissance, here are some - and they're fun to sing!

General
*Exsultate Justi - Viadana
*Cantate Domino – Hasssler
Jubilate Deo – Lassus
Jubilate Deo a 4 - Hassler
†Laudate Nomen Domini - Tye
O quam gloriosum - Victoria (All Saints)

Easter
Regina caeli - Soriano (also †*Aichinger, Lotti, Lassus a 4)
Surrexit Christus hodie - Scheidt

Pentecost
Factus est repente / Confirma hoc Deus – Aichinger

I've marked the ones I think are perhaps most effective for a first-time listener of choral music (*). Also, I don't know the skill level of your group; the ones marked † are a little easier to sing.

You said 'splashy' - here is one - - -
Thos. Tomkins - Alleluia, I Heard a Voice

Shameless plug here. I obviously cannot compete with your lineup of the great masters (excellent choices, BTW), but a group in my area recently sang my ~80min setting of St. Luke's Passion, and it has some pretty climactic movements (example). The choir parts are SATB, and much of it is a cappella. The score can be found at the bottom of the post here.

A very exuberant Easter motet by Caspar Ett is this Haec Dies, early 19th century
https://youtu.be/6ESGvhNQ76A
Obtainable on cpdl. Our choir loved singing it.

You haven't listed, except for one ("If ye love me" by Tallis), any English language works. I strongly suggest that including more English language polyphonic works will help to engage an audience which is largely unfamiliar with polyphonic music, as it helps with the understanding of the connection between music and text which might otherwise be lost on people unfamiliar with Latin.

Although a few such works have been suggested above, I would also recommend Everett Titcomb's superb "I will not leave you comfortless". And ... if it were not scored for SATB-SATB double choir, I would enthusiastically recommend William Henry Harris's "Bring us, O Lord God" (text is adapted from a sermon by John Donne). It was sung at the funeral for Queen Elizabeth II, and eloquent performances have been recorded (e.g. by VOCES8, among others).

But ... (shameless plug alert): My own 5-part (SATBarB) setting of "Bring us, O Lord God" is a worthy alternative to the Harris setting. I have recently revised the work in a few measures (and anticipate its being sung by a prominent professional choral ensemble in the near future). The previous version has already been posted here in the forum (and is quite singable, too), but I am attaching here the score for the new revised version together with an audio sound file (also a choral score with a reduction of the vocal parts for organ).

In passing, I note that both Harris's and my works are contemporary polyphony that are rooted in centuries of polyphonic tradition. Indeed, well crafted, beautiful, sacred polyphony is no longer constrained to come from the Renaissance composers ... whether in Latin or the vernacular. Bruckner and Vaughan Williams come to mind from the romantic and early 20th century eras ... also, Michael Drake and Jacob Flaherty are contemporary examples, already known to people here.