Hey fellow devs!

I know the struggle of getting stuck searching for decent 2D characters when prototyping a sports game, so I built a Free Starter Kit of 2D Arcade Soccer Avatars to help devs skip the placeholder art phase.  

Before I commit to expanding this into a massive 32-team mega pack, I really need some critical feedback from this community to ensure these assets are actually useful and engine-ready for your workflows.  

What I specifically need feedback on:

1. Edge Cleanness & Transparency: These were initially AI-generated, but I spent a lot of time meticulously hand-cleaning the transparent PNGs to ensure there is zero junk or jagged edges. Can someone drop these into Unity, Godot, or an HTML5 Canvas environment and let me know if the edges hold up perfectly against dynamic backgrounds?  

2. Proportions & UI Fit: Do these character proportions work well for your Football Manager-style UIs, team selection screens, or Trading Card profiles?  

3. Color Readability: I've included 4 elite national teams (Portugal, Argentina, Brazil, and Spain). Do the classic colors pop enough for an arcade-style sports game?  

Here is the link to the free project: [Free here]

Any harsh critiques, workflow suggestions, or engine-specific tests are highly appreciated. I want to make sure my art pipeline is 100% solid before making more. Thanks in advance!

Came here as promised 😄 Pixelkiln already gave you a much deeper technical file analysis than I could, so I won't repeat that. His points about consistent canvas sizing, padding and especially the thumbnail are definitely worth looking at.

From my perspective as someone actually building a UI-heavy game, I think the biggest question is consistency as the pack grows.

The four characters work as a starter set, but if you're planning 32 teams, I would establish a very strict template now: same canvas size, same character scale, same ground line, same amount of empty space around every character, and ideally the same visual treatment. Then a developer should be able to swap Portugal for Brazil or any future team without touching their UI layout at all.

I also agree strongly with the thumbnail point. You're selling an avatar pack, but the avatars aren't currently the strongest thing people see when browsing. I'd make 3–4 characters large and immediately readable in the cover. Let the product explain itself before somebody even reads the title.

One more thing from my own recent experience: because you disclose that these are AI-assisted and hand-cleaned, I would make the hand-cleaning and consistency part of the value proposition rather than trying to hide the AI origin. I've received criticism about AI artwork in my own project too, and I've learned that consistency, usability and transparency matter a lot.

Overall I wouldn't rush into producing all 32 teams yet. Fix the technical issues Pixelkiln found, establish one strict production template, improve the store presentation, then make maybe 2–4 more teams using that exact pipeline. If those work without manual adjustment in a real UI, then scale it.

You asked for harsh feedback, so there it is 😄 But I think the concept itself absolutely has a use case.