@hakepe I love your quality of line, it has a lot of nice movement This is a good drawing and I could perhaps give more constructive feedback if I knew a bit more about what you were trying to convey but I have a few points to bring up that could help.
The big one is that I’m not really sure what is happening in this scene and it is mainly because of the central character’s pose. Is she falling over the dog? At first I thought she was about to take off running with the dog because of their playful expressions but her posture is leaning too far back, in a squat/side lunge kind of way and looks like she is about to launch sideways over the dog (onto something soft like a bed or sofa because her expression communicates that she’s feeling happy about it). I now think the dog is laying down because it’s so close to the ground but he also looks a bit like he’s in a leaping posture so I’m unsure at this stage.
My mind is quite confused about the way they are positioned so close in the space, I can’t figure out their relationship to each other and what was happening in the moment before this for them to intersect inches away from on another like this on the path.
Also, her facial features seem too big for her face, she needs a bit more cheek space on her right side for balance.
Despite the action happening right beside him, the man seems to be looking past it all. Is he holding a ball in his hand? I would make it more obvious if so..and if not I would do something else with his hand because my eye follows his pointing finger out of the frame.