A really good effort for your first figure work. My overall impression is that the scene is a little too “clean”. The groundwork, gate walls, figure feet, etc… I’d recommend using some pigments, washes, whatever, to bring some realistic dirtiness to the scene. Dust up the ground a bit, and do the same for the figures’ boots, and the bike. That will tie them into the base a bit, and take the scene to the “next level”.