Looks good. I have some hardy Opuntia along the driveway planted up with yucca and in the front with windmills. Actually, very very easy to grow and almost weedy in the proper environments. One species grows natively along the NJ/Long Island shore. They produce bright yellow flowers in the Spring. Don't worry if they look lackluster in the winter (normal), they will perk right back up once they get out of dormancy for the growing season. Watch out for the thorns (they can have both the tiny ones and the longer ones on the same plant).

Yup, even with the gloves on they 'Pricked' me!

I have the one that is native to long island and new jersey. They grow in sand dunes and I think the flowers only last one day, but with lots of bright yellow flowers all spring. Mine is in a pot right now because I never got the chance to put it in the ground, and its very droopy (its outside). They were rooted cuttings. Also, never pot them in the house, the tiny thorns will be everywhere and they arent easy to pull out. I also have a lace cactus (Echinocereus reichenbachii) thats indoors for now and will be going outside in the ground this summer.
Your cactus looks great. If you do get any snow this winter, they will probably drop down, but they should perk up once warmer temps come. Looks like yours might make some flowers this spring too. Ill just be happy if mine comes back alive. Good luck, and very nice find!