That depends on what you've done with the lower wings - while the few 2109xx a/c known are thought to have all RLM76 or W2 (the front half of the wing painted), its also possible that they had RLM83 front halves of the lower wing; the fact is very little is known about the 2109xx batches, other than some upper surface images... Which seem to show RLM82/83 wings and upper fuselage, with RLM81 fin Mottles...