I think you can do it from here:
Settings > Privacy > Analytics & Improvements > Analytics Data, and look for Artstudio Pro.
More informations here, mainly in "Locate Crash Reports and Memory Logs on the Device" section:
https://developer.apple.com/documentation/xcode/diagnosing_issues_using_crash_reports_and_device_logs/acquiring_crash_reports_and_diagnostic_logs
Ooh very nice! Is there an option somewhere within the app to automatically send these reports to you? Otherwise perhaps make a forum section devoted to crash reports? Maybe nested within this forum?
{"crashreporter_key":"54c426830b7db03f42e05a252951aac0e11aa8d7","bug_type":"211","timestamp":"2021-02-08 19:01:46.00 -0500","os_version":"iPhone OS 14.4 (18D52)","incident_id":"5ECD279E-B863-48BC-97BD-9749BDF99612"}
{"_marker":"<metadata>","_preferredUserInterfaceLanguage":"en-US","_userInterfaceLanguage":"en","_userSetRegionFormat":"US","configParentUuid":"ddee8b79-e2e1-4bd9-a25b-35f8d9882a45","configUuid":"eab20d92-85a6-41ac-aa86-7ba047f22a25","deviceCapacity":64,"startTimestamp":"2021-02-08T00:00:33Z","version":"2.1"}
{"message":{"BogusFieldNotActuallyEverUsed":null,"Count":12,"daily_total_BogusMeasureNotActuallyEverUsed":null},"name":"StabilityHeartBeatCount5","sampling":100,"uuid":"3c8f638f-d492-465e-9e27-546a163beac9_2"}
{"_marker":"<end-of-file>"}