Are my eyes very small? I know they are not big, but are the noticeably small?

The color of your eyelid will most likely resolve on its own as you heal over time. The redness around your eyelids is normal manifestations of healing after surgery. Be sure to wear protective glasses and avoid exposure to the sun.

It's difficult to tell from your picture because it appears as though the camera was above you.  When analyzing upper lids its important to analyze the level of the eyebrow as well as excess skin on the upper eyelid.  Although I cant be sure, an upper lid blepharoplasty most likely would be eff...

You can use vit K cream a few times a day starting a few days before your surgery and then keep your head elevated and lots of ice post op.

The findings you describe sound most consistent with a condition completely separate from the surgery you hade, called "Graves' Eye Disease" or "Thyroid Eye Disease." I would consult an ophthalmologist or ophthalmic plastic surgeon to check into the possibility of this condition.

Chalazia/styes are fairly common.  They can be reduced or removed with either surgery or an injection of steroid.  I cannot tell from your pictures what the problem is.  You can seek help from either an ophthalmologist or an oculoplastic surgeon.

Within a few hours after surgery it is normal to have a heavy sensation in the eyes. Ptosis can be a risks of upper eyelid surgery but this heavy feeling so close to the time of surgery has no indication this will be a problem for you.  I would recommend contacting your surgeon to let them know ...