Thats a cool design. unfortunately some parts, mostly the face, just don’t look very Mega Man Robot Master like. You can keep animalistic parts to it, just the face needs a bit work. Perfect examples are Snake Man and Toad Man (since they are the only 2 robot masters based on actual animals):


See he’s a Man but has some Snake parts on him.
Toad Man just has the general shape of a toad. Your color scheme is good, just keep playing around with his parts and keep working on it
Also another thing that seems a bit off are his claws. If you want him to shoot blobs of poison, just turn one of his hands into a typical buster (just add some spikes or something to make it unique). His other hand can be less distorted but keep the claws. Your character has much potencial, just keep at it and I’m sure it will look good 