Making sprites for a birthday card, need help

[Gaia]

Seems like it's a mostly hetalia-heavy cast, Loki would outright stand out, you should swap him out with America at least, and it would be nice if we can SEE a rough draft beforehand.

Though what I know of is that since you mentioned "adapting a Mega Man look", you must be a first-timer yes? I would suggest instead of using a mega man style, you can make one yourself based on those traits. (the usual black outline, the boxing stance, etc, hold the air-hump though)