you can try momo from peach girl.. hmm.. she dress casually right?.. if you want you can just cosplay her with her school girl uniform on.. it would be pretty cute ..plus you need a wig for her hair.. or if you want you can dye your hair

yeah, good luck ^^

Road from D.gray man (all the Noah's have Tan skin)

Have you considered cosplaying something other than anime? There's some really cool characters you could do. 

Zoe (Firefly/Serenity)

Storm (X-Men) 

Princess Tiana (The Princess and the Frog) 

Uhura (Star Trek) 

Akasha (Queen of the Damned/Vampire Chronicles) 

Catwoman (Batman, as played by Halle Berry) 

Not to mention there's some cool minor characters like Angelina Johnson from Harry Potter (some quidditch robes would be so cool), Yaya DaCosta's character in Tron Legacy, or Iridessa from Disney's Tinkerbell movies. 

http://media.photobucket.com/image/seychelles%20hetalia/PtitAngeSun/Hetalia/Girls/Seychelles7.png

Hetalia - Seychelles

She is really cute aswell !