As for his choice in clothing, Marker Pace, being the competitive flying/speedster he is, and usually working out to be built for speed and race at any time, he usually wears horseshoes, his racing goggles and wristbands, like his non-anthro version does, and some spandex shorts, to be aerodynamic and have less drag as possible. Plus, if you got the looks, why hide them under a pesky shirt? XP
He’s usually hot-blooded, sly, competitive and a bit of a flirty tease, either by showing off his figure or when he sees some eye candy >x3, though he’s more of a reserved humble type of pony under normal circumstances. you wanna fly by his side? Then try to keep up the pace ;)
I really like how this pic came out, since i never made a pic with bara muscles being the main focus before. Feel free to give any constructive criticism for future references if you’d like, as we all deep down are constantly learning ^^.