Seaside Market With Animated Highlights

the prompt

16:9 horizontal video, total duration about 10~15 seconds, all 4 shots, each shot about 3 seconds, connected with fast-paced hard cuts. The footage is live-action smartphone imagery of a "seaside market." The background includes light-colored stalls, sunshades, shell ornaments, a cold drink stall, cloth curtains blowing in the sea breeze, distant sandy beach, and light blue sea surface. The overall atmosphere is bright, light, and strongly summery. The photographer's right hand, holding a thin cyan-blue pen in a normal, natural, correct writing grip, enters from the bottom of the frame. Each shot points to only one real-world object. The pointed object entirely transforms into rough hand-drawn 2D animation, while all other background and non-pointed elements remain live-action.