Of course it looks more like a P-51A than an I-16 mainly because it has a Liquid cooled V-12 engine, not an air cooled Radial engine. Again common end goals with simalure equipment and technolagy of the day often resault in simelure design solutions.
As for your idea thant is landing gear may have influnced the FW 190's landing gear design, that is inaccurate, the prototype FW 190 first flew in June of 1939, And the design was completed at least a year before then, and the Germans would have evaluated the 2nd prototype at least a year after the FW 190 prototype flew.
Using your logic does that mean that the Loire-Nieport LN.401 design was the forrunner of the CAO 200 because it uses a liquid cooled V-12 engine, and also employes auxilery vertical tail surfaces?
en.wikipedia.org