In my opinion, the photo of the 3 are Border Leicester, no closed face ( wool on their faces ) the lamb has a closed face, I would guess he and his brother are a Leicester Longwool/East Friesian cross...
To answer your question about the wool... yes, the wool on the 3 can be put together and sold to a wool pool or CoOp but the little one's wool needs to be kept separate and sold privately to a handspinner... wool buyers can't buy it and wait for a match of like wool to sell as a whole bolt.
Some really love the marbled colors and others find it hard to make things with...
Make sure you tell your shearer that you would like to use it for something, he will shear differently for you...no neck wool, belly wool, and back end, only the best will be saved. Then you can contact a wool mill to have processed if you would like... my favorite is Yolo Woll Mill.
Yolowoolmill.com.