1) Yes on White to Chimeria
2) Yes on Orange to Zabingo (might move a L1 ruin slightly closer to this start spot since others have a close by L1 ruin)
3) I would try and move the Red capitol about 6-7 squares north. That lets them get to the NoThingFjord area a bit easier so they can expand in that direction and contest the area with Blue/Green. You can move a couple of other nearby neutrals slightly north too so there isn't such a large distance from the new capitol location to the neutrals.
4) Yes on Green to Genua
KGB