Freelance Prompt Engineers in MadridFreelance Prompt Engineers in Madrid
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Sebastiaan Wiechers's avatar
Sebastiaan Wiechers
Madrid, Spain
Data Engineering & Fullstack Expert 🚀
Data Engineering & Fullstack Expert 🚀
Cover image for Retrieval Augmented Generation (RAG) LLM Chatbot
Retrieval Augmented Generation (RAG) LLM Chatbot
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Cover image for Development of an AI-powered product configurator
Development of an AI-powered product configurator
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Cover image for Development of a custom ETL solution
Development of a custom ETL solution
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Prompt Engineer(1)
Silica Graphics's avatar
Silica Graphics
proSpain
Art Direction & AI Design | Mastering ComfyUI
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Followers
Art Direction & AI Design | Mastering ComfyUI
Cover image for Wired Originals. Had an idea for an Adidas Originals campaig...
Wired Originals. Had an idea for an Adidas Originals campaign and ended up being the best opotunity to try out a new retrofuturistic mood LoRa. I'm creating my own LoRa based in my art direction and style, and it's beautiful to see how creativity and aesthetics blends with AI workflows. The oportunity to expand the universe I've been creating for +8 years is GOLD. Models: Flux.Krea (LoRa trained) Made in #ComfyUI.
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Cover image for ATTITUDE IS ALTITUDE, a Nike
ATTITUDE IS ALTITUDE, a Nike ACG fan-inspired product placement video I just released. This creative explores the spirit of Nike's ACG lineage through a cinematic AI-driven approach, blending performance culture with visual storytelling. Built entirely on ComfyUI using Zimage Turbo for character refinement and Seedance 2.0 for dynamic sequencing. Every frame was crafted to capture the attitude, grit, and exploration DNA that defines ACG.
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Cover image for Silicard Network is a collection
Silicard Network is a collection of digital operatives set in REI III, a retro-sci-fi world where megacorporations, surveillance infrastructure, and underground factions compete for control of the last functioning city on the planet: Metroplex. Each character is built as an operative dossier, AI-generated artwork, editorial visual identity, original lore, and presentation materials across multiple formats: character sheet, front card, and video post. The aesthetic draws from classic retro-sci-fi iconography and analog tech design, rendered through a sharp red, black, and orange visual language. SIGMA is the second operative released in the collection. A signal breach specialist working for the Hardlink faction, his role is to force open temporary corridors through Metroplex's surveillance and control networks, drawing system attention away from physical runners on the ground. The work is short, precise, and physically punishing, with hard limits before his own body starts to fail. Recently, something has changed. The city's infrastructure has begun adapting to his methods, anticipating breach patterns that should be untraceable. In REI III, when a system starts to learn, the operative who taught it becomes the next target. Silicard Network is a Silica Graphics project, worldbuilding, lore, and character design built with AI.
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Cover image for Fictional ads from my portfolio
Fictional ads from my portfolio SILICAVISION MAG. Check it out at www.silicavision.com
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Prompt Engineer(1)