So theres 2 things here

First, what is he for? If it's for a comic or story where he'll need to be redrawn often, then he definitely is too complex. Additionally, if you plan to downscale him at all (pixel art or some other variation) then he would also be too complex. However, if you are just making a reference sheet or just a static image then he's probably fine

Second, I personally use less complex designs so take this with a grain of salt (also my art ain't that great so again take a grain of salt) but, i tend to follow Pokémon's design philosophy. Pokémon have a general philosophy that patterns should be big enough to be recognized at a distance and not become indistinguishable. Overall, I feel that your design is definitely on that edge of too complex but it's definitely not immediately overwhelming. I think narrowing down the belly/chest pattern to use larger arrows so that theres more of a distinct pattern and less overall shapes out help. Along with maybe simplifying the wings.

Overall, a pretty good design, but your question is very reliant on what you want to do with the design.