Cute! The little guys look so cranky like they just got woken up.
I like those solid colored agoutis a lot, I have 3.6 breeders and have never wound up with a solid agouti; all of mine are RED or pied agouti.

Just a suggestion ('cause I'm one of those tree-hugging sorts who let little fluffies get to me), could you maybe give them something to chew on? There isn't much for them to do in those tubs and some cardboard tubes or wood blocks might provide a some environmental enrichment.

Have fun with them, you'll be overrun before you know it!