(Original Robot Mode design with some now-outdated info. Commentary below includes slight edits.)

a) Right arm - Beast mode's head and neck and Left arm - Metal
wing from Beast mode (the razor-edged 'feathers' are retractable
for convenience's sake. Double as a weapon in robot mode)

b) EDIT: 'Matrix'* is located on the (blue) jewel on his right
wrist/back of beast mode's neck (see c). The Spark is located in his
chest somewhere.

c) Left wing is the 'E-Wing', (Energon-Wing) powered by his own energies. In robot mode, he can't fly without it, but on the other hand he can only use it for a certain amount of time before his resources are drained.

d) Tiny black 'dots' on eyebrows are actually cameras (both heads
have these). Said cameras do not send information to Viledove and
are actually something of a mystery. They came to be after he got
'reformed' when Peacewing's spark died indefinitely (Peacewing was
a female Maximal who ended up fusing with Vile to form Viledove. In other words, yes, the reason Viledove is the bishy-headfeathered douche that he is today is in partial thanks to the power of LOVE. Ungrateful jerk.)

e) Either from the magic of the world he was transported to in the IRC or because Viledove's player is an idiot, Viledove is a very tiny Transformer, topping at aprox. 12 tall in robot mode, excluding tail length. The doodles in the picture represent a couple of other PCs he ends up getting acquainted with in the game, including a little kitsune girl who ends up being his mate. Yes, you read that right. (and no, they can't breed. I think. They adopted a puppy, though.)



*Yes, THAT Matrix, as in "of Leadership". Due to circumstances beyond my control, in the IRC RP game where I started to use the character, he manage to come across the Matrix's current owner completely unable to sustain it due to some alterations in his makeup (read: He was turned human) that forced him to look to another Cybertronian to tend to the Matrix in his stead. Lacking anyone more trustworthy, Viledove ended up claiming it. However, he never became an actual "Prime" until waaaaay later near the game's end, and only after game circumstances pretty much forced him into it, whether he wanted it or not. That final evolution in his design, dubbed "Venomus Prime", is still being worked on to this day.