On the first one I've used Exquisite Nook which is actually longer on one edge but I've snipped into it and cut it four time to enable me to make a square frame. It also comes with a matching backing plate.
The hello sentiment is from one of the ATC sets that were released earlier this year. It's mounted on my favourite die set from Tonic this year - Victorian Frame.
Card used is Craft Perfect Honey Gold Satin Mirror card (yes I use this a lot ☺️), Coral Pink and Bright White.