I liked it overall but the facial expressions were the most striking.
It took me awhile to see that there are four aliens in this.

i like the character design and the expressions are very appropriate.
the background is well done, but i think it lacks the alien quality that the figures have. it looks like they are in a national park in north america.

Wow, great artwork here.
I can totally picture an "insert funny caption here" type situation for this.
Although inter-species murder is never funny... sometimes!
XD

criminal alien o.o

and you're my new favorite artist, this is so cool. i love the expressions...the characters, the colors, the props, the action, the set-up...dude, you can like read two-arms lips..."ohhh...my bad, URHURHURHUR"