Right, I actually have the time to go into the individual characters.
Name: Altais Tyl
Gender: Male
Race: 'Uplifted' Blendscale (I don't know what to call it... blendscale/djuni looking thing?)
Specializations: Chaos magic, Physical Enhancement, imitation, and psycology.
What the hell that means: Al is an innate mage of the element chaos. This does not mean he casts chaos type spells, but rather that his spells are related to chaos. Basically the details of his magic differ from day to day. One day he might operate by influencing chance and fate around him to get what he wants, and interesting/unlikely events are more likely to occur (aka, improbability drive mode).
Another option is direct application of chaos, causing ordered things to lose order, but ignoring things which are already chaotic. This means a cauldron lid would not help you at all, but a shield with suit of armor would help protect you quite a bit though you'd end up with severely warped equipment afterwards. Metal rusts and wood starts to grow once more, while humans might suddenly suffer stroke, break a bone, or suddenly develop straight teeth. The longer you are effected, the longer something permanent and/or bad is likely to happen to you. This is what I refer to as raw chaos mode.
On the other side of the coin, 'refined' chaos mode is where he wields chaos more like a scalpel than a sledgehammer. It's not quite so powerful, but he can control where it goes, causing a wooden door to warp out of the way rather than abruptly put out branches and root itself into the ground.
Next, random mode, is when he literally has no control over his spells. For those of you familiar with TotQ, think Wildcard. Once the spell starts, he knows what it does, the limits, and can control it, but before that he has little to no input. The limit of what he can do is determine the purpose of his spell, such as attack, heal, summon, etc.
There may be other variations, but in the interest of not going on forever, I'll move on to Physical Enhancements. In some ironic and confusing twist of nature, Al actually has pretty good control over his magic when it's applied to himself or people he knows well (pretty much just his brother really). This may seem like he himself is ordered and causes chaos around him, but that is actually very wrong. He is not the eye of the storm, but rather the storm is most intense around him. Al is a master of riding out chaotic situations and acts best when there are a lot of random factors and events flying around. This plus a sort of 'familiar grounds' phenomenon causes him to have very good control of magic applied to himself. Like a really good surfer, it's easier to surf properly on a big wave than on still water. Also like such a surfer, screwups are rare, but rather spectacular.
The last thing mentioned was imitation/psychology, which means that he knows how to get into someone's head and mimick them and their spells for a short amount of time. I'm not sure if this counts as a specialization, but it's a nifty skill I thought worth mentioning. There may be other specializations that I didn't think to list here... if so I'll edit this later.
The rest of the points such as appearance, history, etc I already explained and is the same for both twins. Due to Al's control over himself, appearance is not actually set, but you can go off what I said earlier for their 'natural' forms. Generally due to prejudices against 'freaks', the twins find it easier to pretend to be blendscales for the most part, hiding all signs to the contrary by various means when traveling in populated areas.
Age: 20
Weapon of choice: Martial arts. Due to the chaotic nature of his magic, Al quickly realized is wasn't wise to rely too heavily on it in case things went wrong, so developed something that didn't have to be carried around and was very versatile. This plus his enhancement magic makes him a formidable foe, especially against multiple enemies and in chaotic situations where he is right at home in his element.
He will also occasionally fight with an actual weapon just for kicks or because the situation calls for it, but doesn't carry them around so has to summon a new one every he needs it. This sometimes leads to awkward situations where he's facing a knight in armor with dinner cutlery. He can use his personally applied magic to give himself temporary proficiency with what he's stuck with.
Interesting facts: I'm taking a quantum angle on chaos, meaning when you look at him casting a spell, it will look different every time you look. In generally, his magic will get the job done, it just does so in rather questionable paths.
I'll get to Eltanin (El) on another day when I've time... :/