Hi @concuu, I think you have a nice start here! Personally, I would have a lot of trouble with the cat too because the photo is extremely foreshortened and blurry. You can't really describe the form here unless you pull up some additional and/or better reference photos. For some general advice, practice those gestures and proportions! You can get pretty far with just those 2 elements. But, if you want to make your drawings 3-dimensional then, make sure you draw THROUGH the form. Draw the other side even if you can't see it, practice those boxes and cylinders so that way you can build up spatial awareness. (The reference photo is a straight-on side view, but I did my drawing as more of a 3/4 view to reflect what you did. Notice that you can't actually see that back leg in the original photo.) I hope I could help, cheers!

Hey Georgi, these look pretty good to my eye. The one thing I'm noticing is that your gestures are picking up a lot on the forms/contours of the body (mostly in regards to the leg muscles it seems).  I think in certain cases they would translate the movement/flow of the poses better with more continuous strokes (or a zig-zag at the knee depending on the pose).  I'm pretty new to drawing in general so take my critique with that in mind. Keep it up, cheers!