[Willy]

That looks kinda like a 152 C. Why not just use that?

Not if you look close...

Fw190D series used Junkers Jumo engines, which have air intake on Stbd. side. Same for Ta152H
Ta152C used Daimler Benz 6xx engine (DB603LA I think?) with air intake on port side (opposite).

Drawing above shows aircraft with 4x wing cannon arrangement.
Ta152C had 2x wing cannon arrangement.

I have no great knowledge of Fw190, but seem to remember reading that some late model Fw190D shared components with Ta152 like broad chord tail fin / rudder for example?