Are these dice balanced?

Just put in my review, maybe it will help (re-pasted here): 1) Absolutely beautiful colors, and most sets are very easy contrast to read. Nice bag too. 2) Many are poorly balanced, but seriously... every hobby has elitist snobs. Please read before you decide for yourself. I did the salt water test and picked one of the worst tested. For entertainment while watching TV or something similar one night, the GF and I did literally thousands of rolls and recorded in a spreadsheet what numbers came up. We used several D20s, as D20s are the most round and thus the most likely to roll heavy-side-down. (Not that it matters, but she's from Vegas, and both of her parents work tables at casinos. I just love testing things and spreadsheets with graphs.) My hypothesis, was that after enough rolls, that the clearly lightest face would emerge as the number that was rolled the most frequently, but the question was how frequent...? On the most tested D20 (1000+ rolls), the most common number rolled was only 1 face away from the one that usually came up in the salt water, the lightest face (remember, one of the worst balanced was the primary test). I tracked how many faces away from the lightest face each result was. But guess what...? The second most rolled face was the exact opposite side of the lightest, and several faces away from the most rolled. Meaning, the #2 most rolled was also the heaviest, meaning should have ended up down. It didn't. After more than a thousand rolls, there was still a large discrepancy between the most and least rolled, but no correlation to weight/center of gravity; literally none that could be discerned on the graphs. So, I checked stats on professional, hobby-elitist, and even casino dice. Even perfectly homogeneous in material, density, machine milled dice seem to do this when professionally tested, and over tens of thousands of rolls. (I'm sure someone that has a $159 die in a padded, armored case will correct me on something here...) These aren't rotors in Enigma machines or gyros in nuclear missiles. I'm painfully analytical sometimes (obviously), but the point of the game is the feel generated by playing the game, so if these are the look you like, just buy them. These dice are inexpensive, look flat-out awesome, and provide adequately random numbers for whatever game you're likely playing. If you want something more expensive, cool, but don't spend more simply based on fears that dice might somehow not act like dice. They will. I hope this helps!

Does each set of 7 dice come packaged separately?

Yes, every set is individually wrapped in plastic.

On the included silk pouches, which creatures do the two least obvious blazons depict?

They don’t look like anything specific, while the other four are a dragon, horse, eagle and bull. The bags are velveteen, not silk. They’re sharp-looking but a bit small and stiff.