Max, if recording using a mic, the pick hitting the strings sounds like it was picked up. If that's the case, either record it louder or isloate it in a closet or use a longer cable to get further away from it. It's a different sound than pick noise coming through the amp. A little more finesse and less agression with the rhythm could help as well. Find a strumming pattern because every strum has the energy likes it's going to be your 1st or last strum.
In the mixing, you'll get a feel too for what needs to be dominant. It feels to me like the lead and rhythm are both fighting to fill the same space. Like Mayfly's chair of humility, when a whole band listens to a rough mix, each member wants their parts to be louder. Since you did both parts, you might want both to be louder. In a lot of recordings, if you listen to them with headphones, you'd be surprised what is there and what isn't, yet you still get the feel for everything. A drum set can sound huge in a recording with few pieces by a nice locked in rhythm section. Example, you don't hear the bass, but it sounds like the kick drum is changing pitch. A kick drum "boom" or "slap" sound can change the feel of a song too. The more you record, the more you will rediscover existing music and listen to it with new ears.
I concur with the concensus. Far from perfect, but a great learning exercise and 1st attempt. Everything will get better. Nice job, and mucho balls for putting this out there for everyone to critique!