OMG! That's awful...I usually catch that stuff when I'm colouring - PK kept forgetting Miriam's black sleeves in the few pages before this. I totally didn't see the two arms thing - it's probably to do with the bells! The gloves are another thing, I think she wore them when she arrived at work and then we forgot them and then he remembered and forgot them again
No excuse...except we do 130 pages or so a year and with a lot of characters, outfits, etc, it's sometimes hard to keep track. In our defence it's not unusual - I colour one of our comics that another artist draws and I'm always having to alter outfits where the artist has drawn boots in Panel 1 and then shoes in Panel 2 and then back to boots...
You do win the no prize for best continuity error spot