They are both Russian ponies who work at a church/orphanage together, and both of them are girlfriends :3
Angel is a very girly mare that enjoys tending to the flowers around the Church as well as helping to decorate during events and holidays. She is very kind and helpful, and she is always there to help support others when they are in need. She also enjoys fashion too, liking to help give advice to other ponies on clothing, and also likes to try out various different outfits as well (with poor Jezza being her unlucky test subject XD) Also has a very sweet tooth as well, and can get pretty hyper if she has too much sugar xD
Jezza Belle is a more goth and tomboyish pony, who is an artist who deals with making art in unusual ways or with unusual subjects (like making accessories out of junk or random items). Despite her appearance and her antics, and even though she is not religious, she is still very supportive of the orphanage as she sees everyone there as family, and she too likes to help out when she can. Girl is also a BIG user of energy drinks and caffine, she can go through a whole pack in like a day XD
Despite their differences, both girls are very supportive of eachother, and they had a very close friendship when they were fillies, before both of them admitted their love for eachother when they became adults. Both of them live in a small house that Angel owns, just outside of ponyville