Hi. If this robot you may use as you paint, cover plate, wire and other. But if this man you must remove unnecessary lines and think what you lightsource. Now in picture you have too much light... everywhere.

This is comic style - you can go on in this direction further (contour line, flat picture), but if you want more volume then need more analysis in shadow and light.
Nice sketch! ))

Yes, Sharm and Setz! I like second lie too. And exactly, first one would work better with a bigger dog ))

Sketch for jump:

Maybe some later it's will be a broad jump...

I don't speak a word of russian, the internets speak every language there is though... badly. It's a translation tool. Did it come out hilariously broken wrong grammar-like in russian?

Yes it did some wrong  In the beginning I am not understand what you say , truth to tell, but after some meditate I am comprehend you words!
After that I am khow how people understand my very horrible english... so sad. Anyway I am glad for you post russian words, thanks, it's been agreeably! Nice slogan!!!

setz: See on surface


Gas 13: " Sorry for the offtopic, mangust." - it's not horrible. We talk on russian, just from my incomprehension at one dash. Helm talk on russian, just for fun, not for business! And we not talk too long. But I am assent with you, on this forum talk on english is fair, exclusion similar little cases %))

More contrast in his knife on tentacles, they will be looks more aggressive and metallic, now it's just something not too hard. And of course is some flat for boss, added big shadow on body and his round back, less some detail in shadow. Little ship looks more intresting, because he have more shadow.
Nice work!

Light from lamp maybe some cold, it's not sunlight. He not enough yellow light around him and inside.
Please continue, very interesting ))