Your incisions look intact, but the fact that they are red may be a sign of infection. It would be best for you to contact you plastic surgeon. It is normal to have some discomfort when you raise you arm. This will loosen up over time. Hope your recovery is otherwise uneventful.
It is very common that the scar looks pink/red in the first few months after surgery before it begins to fade. However, redness into the skin, like you have toward the armpit, should be evaluated by your plastic surgeon. Call the office for an appointment as they will best be able to evaluate in person.
