First of all what a great drawing, very fun and interesting sketch you got here! For your sketch, i'd focus on adding more more depth, since this will help making the scene more believable! I'd suggest working more from the horizon line as that can really help, and placing objects in space according to it, like how i adjusted the basket and made it so there's trees converging towards the horizon line by drawing them smaller as they're further away (closer to that vanishing point.) this also makes the image read more from left to right guiding the viewer first meeting the frog, and exploring the image as it guides you towards that vanishing point. I think moving forward it might help you to plan your composition a bit more, working more from a horizon line and since you said you want to focus on improving composition you can look into different type of composition techniques like c shape compositions, v shape compositions, balanced compositions, golden section, golden spiral, rule of thirds, and so on, and base your sketches on these "rules" which can really help! There's plenty of resources for this online and would be a fun way to challenge yourself for this month! Good luck!
